puzzle

ACROSS

  1 Doubtful

  5 Clear, as a windshield

 10 Gentle touches

 14 Alone

 15 "West Side Story" dubbing legend Nixon

 16 Jazz's home

 17 In ___ of (replacing)

 18 Cook over boiling water

 19 Otherwise

 20 Vote in

 22 Encourage, like growth

 24 Intend

 26 Whistle blower

 27 Full collection

 28 Inner ear parts?

 33 Youngest woman to serve in Congress, briefly

 35 Fired

 36 SAT prep list

 38 Spoken

 42 "___ 911!" (comedy series named for a Nevada city)

 43 Typo, for one

 44 Speck of dust

 45 Prefix for "freeze"

 46 Ridiculous

 47 Send forth

 48 Preschooler

 50 Jackets originally worn by sailors

 52 Core components?

 55 Reduced-___ milk

 57 Relatives

 58 Beachy footwear

 62 Show flexibility

 66 Uber or Lyft alternative

 67 Animal also called a forest giraffe

 69 Twisted treat, perhaps

 70 Paradise in Genesis

 71 Buddha's birth country

 72 Bird feature

 73 Take five

 74 Twisted tree part

 75 Perseverance's org.

DOWN

  1 Man, for one

  2 Prevent, as a plan

  3 Beat it

  4 *"Keep trying!"

  5 You can slide into them on Twitter

  6 Has a snack, say

  7 Guitar ridge

  8 Broadcasting

  9 *"Oh, puh-lease!"

 10 "Hamilton" faceoff

 11 Map book

 12 Moisten while roasting

 13 Word following "cookie" or "ice"

 21 Nervous twitch

 23 Sci-fi ride

 25 *"Nothing to see here!"

 28 Oscar and Grammy winner Irene

 29 Yoked pair

 30 Monthly expense

 31 Brought into the world

 32 Abandon, as a plan

 34 "The Price Is Right" catchphrase, or a hint to the meaning and direction of each starred clue's answer

 37 Top-notch

 39 Capital of Italia

 40 Toiling away

 41 "Shall we?" reply

 49 Not quite right

 51 Operative Carrie Mathison's org. in "Homeland"

 52 Later on

 53 Grass unit

 54 Boxcars, in dice

 56 Old-school subway fare

 59 Pub serving size

 60 Bear whose porridge was too hot

 61 Trade jabs

 63 Soprano's showstopper

 64 They're used to sign checks

 65 Garment worn in the Forum

 68 Unwell

solution