puzzle

 ACROSS

  1 What to stop before you go on vacation

  5 University of New Mexico wolf

  9 Oscar follower, in the NATO alphabet

 13 Voice above tenor

 14 Wyatt at the O.K. Corral

 15 Exam after a midterm

 16 Travel far and wide

 18 NBA star Iguodala

 19 Waited at a light, say

 20 "That was over the line!"

 22 Massachusetts cape

 23 Source of rocks?

 27 Nonspecific quantity

 28 Texter's "I appreciate it"

 29 Smidgen

 30 Pastrami bread

 31 Slant

 33 Alternative to acrylic or pastel

 35 "Skip me," in bridge

 37 Google subsidiary's streaming service

 41 DVD player button

 44 Empty space

 45 Slender and fit

 49 Light, in Latin

 50 Conference with many talks

 53 Actress Michele or Thompson

 55 Santa ___ winds

 56 Very upset

 59 Oversaw

 60 Baked fruit dessert

 61 "Laughing" carnivore

 63 Tuscan city

 64 Certain roulette wager ... or what 16-, 23-, 37- or 56-Across has?

 67 Macho guys

 68 Four-___ fastball

 69 Aswan High Dam's river

 70 Mine outputs

 71 URL opener

 72 Eye woe

DOWN

  1 Like a hex

  2 "There, that's that!"

  3 "Shoulda listened to me"

  4 Hoop or stud site

  5 Permit

  6 Propeller in a lock

  7 Bucking horse

  8 Decline to participate

  9 ___ gris

 10 Pyrenean country

 11 Leverages, as a skill

 12 Brew that may be pumpkin-flavored

 15 Accepted reality

 17 Change, as copy

 21 Still undetermined, on a sched.

 24 Chinese name whose first letter can also be "Z"

 25 Word with "ramp" or "sign"

 26 Cry of success

 32 Central Park's home, informally

 34 Tote (around)

 36 Lowest-ranking G.I.

 38 ___ Empire (Turkey's former realm)

 39 Indonesian resort island

 40 Heaviest fencing sword

 41 Santa helper

 42 More scandalous

 43 Well beyond the norm

 46 Welsh dish with melted cheese

 47 In a silly way

 48 Large marine mammal

 51 Subside

 52 "Mmm, that's good!"

 54 Ritalin target, for short

 57 Things to hum

 58 Core belief

 62 Hankerings

 63 HBO competitor, briefly

 65 Warmed the bench

 66 Mini-menace

solution