ACROSS

  1 Place onto a self-checkout machine

  5 Scottish hats

  9 Petri dish gel

 13 Angels' headgear

 15 Cookie with a Lady Gaga flavor

 16 Snap, Crackle and Pop, for one

 17 Cuban-born "Knives Out" star

 19 "May" or "march," at times

 20 Cocktail invented to prevent malaria

 22 ___Pen (lifesaving item)

 23 Top shooter at a basketball game?

 25 Prez known for honesty

 28 Fish in unadon

 29 "All right, phew!"

 30 Obsesses over a celebrity, say

 33 ___ & Young

 35 Circular current

 36 Sandwich nobles

 39 One spelling for a conical Cree creation

 40 Leading question?

 42 She sells certain shells by it

 44 Smells in restaurants

 47 Minor criticism

 48 "Neither a borrower ___ a lender be" ("Hamlet")

 49 Facilities covered by blast doors

 52 End of a nonprofit's URL, often

 53 Reader of Engadget or Gizmodo

 57 First man in the Bible

 59 Rodent that barks

 60 What many a trans person changes

 61 Sewing lines

 62 '90s fitness phenomenon

 63 Pirates' approvals

 64 Humanities' counterpart, briefly

 65 In a wink


DOWN

  1 Layered hairdo

  2 "Pretty please?"

  3 Turing with a namesake test

  4 Greet nonverbally

  5 What may stop you from spilling the beans?

  6 Protective gear

  7 Will, if possible

  8 Super cool

  9 Dune rider's transport, for short

 10 Gumbo garnish

 11 High-end Apple earbuds

 12 American ___ (Wisconsin's state bird)

 14 Martial arts teacher

 18 Stick (to)

 21 ___-free eggs

 24 Arizona-to-Utah direction

 25 Not that many

 26 Good time to change locks?

 27 Sci-fi novel featuring aliens known as buggers

 31 Sandwiches with tzatziki

 32 Fourth-year students: Abbr.

 34 Stadium level

 37 Ideology behind the October Revolution

 38 One may shuffle around a deck

 41 Send forth

 43 "Cut that out!"

 45 First Hebrew letters

 46 Confidential

 49 Disney heroine who meets the demigod Maui

 50 "Aw, what a ___"

 51 Bundle of grain

 54 Creative spark

 55 Arcing shots

 56 Quartet of showbiz awards

 58 Month, in Mexico