Campaign catchphrase of 1988 / SAT 9-25-21 / Site of the impact of the asteroid that killed the dinosaurs 66 million years ago / Rhetorical inversion device seen in Champagne for my real friends real pain for my sham friends /Greek goddess of memory / Flower that's also the name of a Downton Abbey character / Drug known by its German initials / Palindromic number in Italy / County that's split in two by the Grand Canyon

Constructor: Adam Simon Levine

Relative difficulty: Medium-Challenging

THEME: none 

Word of the Day: CHIASM (27D: Rhetorical device seen in "Champagne for my real friends, and real pain for my sham friends") —

In rhetoric, chiasmus (/kaɪˈæzməs/ ky-AZ-məs) or, less commonly, chiasm (Latin term from Greek χίασμα, "crossing", from the Greek χιάζω, chiázō, "to shape like the letter Χ"), is a "reversal of grammatical structures in successive phrases or clauses – but no repetition of words".

A similar device, antimetabole, also involves a reversal of grammatical structures in successive phrases or clauses, but unlike chiasmus, presents a repetition of words in an A-B-B-A configuration. // Chiasmus balances words or phrases with similar, though not identical, meanings:

But O, what damned minutes tells he o'er
Who dotes, yet doubts; suspects, yet strongly loves.

— Shakespeare, Othello 3.3

"Dotes" and "strongly loves" share the same meaning and bracket, as do "doubts" and "suspects".

Additional examples of chiasmus:

By day the frolic, and the dance by night.

— Samuel Johnson, The Vanity of Human Wishes (1794)

Despised, if ugly; if she's fair, betrayed.

— Mary Leapor, "Essay on Woman" (1751)

For comparison, the following are considered antimetabole, in which the reversal in structure involves the same words:

Pleasure's a sin, and sometimes sin's a pleasure.

— Lord Byron, in Don Juan, (1824) (wikipedia)

• • •

This one started out very easy (in the NW), but then got much tougher, much more Saturday. I'm really not a fan of puzzles that get all their difficulty from obscure trivia, and this one is a pretty fair example of the type. I know the Crater in question is famous. I've undoubtedly had its name in front of my eyeballs at some point. But the fact is that CHICXULUB is nine random letters to me (thankfully, I could infer CRATER). It's a valid answer, but it's no fun to solve because even when you "get" it all ... I mean, is it right? How would you know? You just have to trust the crosses and hope for the best. And all the crosses were pretty solid today, no guessing involved, so that's good. But still, this is one of those bits of trivia that essentially hands the puzzle to the minority of people who just know it, and absolutely blocks the puzzle for those who don't, and there's not a lot of middle ground. Meh. But if it were just one answer that went obscurantist on me, I wouldn't have minded. But then CHIASM? (pronounced KYE'-as-m). I teach English and have even used the term "chiastic structure" to talk about lines of poetry but I've never seen the term CHIASM in my life (or its apparently more common (?) form, "chiasmus"). It's vaguely from my field and I still thought it obscure. It's familiar to a narrow group of people. Basically professional argot. Shrug. Then throw in MNEMOSYNE and honestly it feels like I'm taking a test now, or playing some kind of trivia game. I knew the MNEM- part of the goddess of memory (thank god, because otherwise I definitely would've thought the sports agent was ARI), but the -OSYNE part I got, eventually, only because there is literally a MNEMOSYNE brand spiral-bound notebook on my desk right now (such great paper, so sleek and beautiful, accept no substitutes). If you want some lesser-known term or mythological figure in your grid, OK, but maybe limit yourself to one. This one had a ... tendency, a bent, an attitude that suggested it was more interested in testing you, and stumping you, than in entertaining you. Some people like that, maybe. Makes them feel like the puzzle's being sufficiently intellectually rigorous. Me, I'll take my Saturday challenge with a little less of this brand of "rigor" and a little more cleverness. 

There were also two very bad clues in the puzzle that kind of wrecked things for me. You never want the correct answer to leave the solver feeling like "that was cheap" and I definitely felt that a couple times today, first and most especially with the clue on "NO NEW TAXES" (5D: Campaign catchphrase of 1988). Now, part of my problem is that my brain wasn't really taking in the "campaign" part of the clue, so I was looking for a general catchphrase, like, I dunno, "WHERE'S THE BEEF?" or something like that. But even when I had it down to NO NEW TA--S, I had no idea, despite being very much alive for the 1988 presidential election (the first one I voted in). You know why I had no idea? Because the "catchphrase" isn't "NO NEW TAXES." No, no it isn't. You know what the catchphrase is. You do. You know how it starts—and it's How It Starts that makes it memorable, i.e. Makes It A Catchphrase. The "catchphrase" is (ahem), "READ MY LIPS: NO NEW TAXES." This is what got said and repeated and parodied etc. This *entire* phrase. Dude was trying to play some kind of Dirty Harry and ended up just eating his words, breaking his promise, and then getting destroyed in 1992 despite having huge approval ratings just one year earlier, after invading Iraq (the first time we did that). If you don't have the "Read my lips" part, you do not not not have the "catchphrase." You have a phrase. Also, DUNGAREE is the fabric, so DUNGAREE *is* your jeans. It's not "in" them. Boo. I know you wanted to do a little winky naughty sexually suggestive thing here with the clue (13D: It may be in your jeans), but if your clever clue doesn't ultimately work for the answer, pffft. 

The rest of the puzzle seemed fine. Perfectly smooth and solid and Saturdayesque. And I did appreciate the crossing of "NO NEW TAXES" with WUSSES, that's a sly bit of genius right there (the more common term for Bush I was "wimp," but "wuss" will do). Good workout, just wish it had been less reliant on lesser-known terms and terminology for its difficulty. Does anything else need explaining? LEANDER (16D: Tragic lover of myth) is from the story of Hero and LEANDER. My man swam the Hellespont every night just to be with Her(o). But then, you know, inevitably there's a storm, he drowns, she drowns herself, the usual Tradge. I know the story of the two lovers primarily as a poem by Christopher Marlowe. It was unfinished at the time of his death, and "completed" by at least two other poets over the years, most notably George Chapman—he of the Keats poem, "On First Looking into Chapman's Homer" (1816):

Much have I travell'd in the realms of gold,
    And many goodly states and kingdoms seen;
    Round many western islands have I been
Which bards in fealty to Apollo hold.
Oft of one wide expanse had I been told
    That deep-brow'd Homer ruled as his demesne;
    Yet did I never breathe its pure serene
Till I heard Chapman speak out loud and bold:
Then felt I like some watcher of the skies
    When a new planet swims into his ken;
Or like stout Cortez when with eagle eyes
    He stared at the Pacific—and all his men
Look'd at each other with a wild surmise—
    Silent, upon a peak in Darien.

Signed, Rex Parker, King of CrossWorld 

P.S. Today is the 15th anniversary of this blog. I did a 15-tweet thank-you thread on Twitter already, but I'll thank you all here too, on the blog itself, for reading and supporting this blog over the years. I'll leave you with the first three tweets, since they're the ones about you :) 

Saturday, 9/25, is the 15th anniversary of my crossword blog.

So, a little thank-you thread, 15 tweets for 15 years (15x15!)

First, obviously, the wife, the kid, the dogs (RIP) and now the cats, they all rule. Very supportive. I blog from home and home has been good (1/15)

— Rex Parker 🐈🐾☕️🐾🐈 (@rexparker) September 24, 2021

I sincerely do not read the Comments most days because no human being was ever meant to get that much feedback, but I still love commenters, esp. Loren Muse Smith, who appears to be their queen (and has been a friend and big help to me over the years) (3/15)

— Rex Parker 🐈🐾☕️🐾🐈 (@rexparker) September 24, 2021

[Follow Rex Parker on Twitter and Facebook]