Puzzle

 ACROSS



  1 One of 16 in chess

  5 Pointed remarks

 10 Actress Hatcher

 14 Easternmost four-letter state

 15 Ancient public space

 16 Sent packing

 17 Amy Klobuchar, for one (last 3 letters + ...)

 19 Asian desert (... first 2)

 20 "Pen" lead-in

 21 "___ girl!"

 23 ___-of-war

 24 Open declaration (last 3 + ...)

 27 Sauce on a gyro (... first 2)

 29 "Bad ___" (2016 Mila Kunis film)

 30 Spotify's 2018 debut: Abbr.

 32 Be silent, in music

 33 Pro's opposite

 34 Like some pitchers

 37 Mass book (last 3 + ...)

 40 Scented bag (... first 2)

 43 Ladybugs, e.g.

 45 Greek P

 47 Pacific island country

 50 Bit of horse food

 51 "Young Frankenstein" character

 52 Nonsense (last 4 + ...)

 55 Final song at a concert, often (... first 4)

 57 ___-de-France

 58 Like a good flan

 59 Fish eggs

 60 Flavorful lemon part

 62 Do a headspin, say, or what four of this puzzle's black squares do?

 67 Failures bruise them

 68 Lather, ___, repeat

 69 Pick up

 70 Northern Nevada city

 71 In a strange manner

 72 "Holy smokes!"

DOWN

  1 "Wonderful" juice brand

  2 Tuna type

  3 "___ some, lose some"

  4 "Haven't heard anything yet"

  5 St. Peter's and others

  6 A long time ___

  7 Palindromic cuff type

  8 2000s fashion dolls

  9 December 25 visitor

 10 Game with a "freeze" variety

 11 Delightfully unusual

 12 Admonish

 13 "That's cool"

 18 Clean air org.

 22 Story you may need a ladder to get to

 24 Regal competitor

 25 Va-va-___ (exciting quality)

 26 Swanky hotel chain

 28 "Scrubs" actor Braff

 31 One-named soccer legend

 35 The Thin Man's best friend?

 36 It lets you into any room

 38 "The King and I" setting

 39 Put out, as a candle

 41 Therefore

 42 An Avenger

 44 Applaud

 46 It may contain iron

 47 Big name in big pharma

 48 Claim

 49 Rests atop

 51 Manny the Mammoth's movie franchise

 53 Book, in Spanish

 54 Deodorant choice

 56 Silent agreement

 61 General on a menu

 63 It's seen but not heard: Abbr.

 64 Pester

 65 Top-secret org.

 66 Finale

Solution