Puzzle

 ACROSS

  1 Inventor Musk

  5 Anthropologist Margaret

  9 Agility contest moves

 14 Pro ___ (at no charge)

 15 Nelson Mandela portrayer Idris

 16 Berkshire Hathaway's Nebraska base

 17 Type of jeans

 19 Palindromic boat

 20 Wife of Zeus

 21 Contractor's quote

 23 Southwest native

 25 Winning serve, in tennis

 27 Singer DiFranco

 28 (C)overt (op)eration

 32 Surgery ctrs.

 35 Anticipate a treat, perhaps

 36 Gear teeth

 37 Small laundry problem

 38 In unison

 39 Word after "peanut" or "truffle"

 40 "___ things happen"

 41 Discard

 42 Guthrie of folk music

 43 Main artery

 44 Language suffix

 45 Group of celestial objects

 47 I-one connector

 48 Gel

 49 Stuff in a bale

 50 Hardly a picky eater

 55 Captain of the Nautilus

 57 Language that gave us "kiwi"

 58 Academy Award speculation

 62 Occupied

 63 Meat in a 59-Down

 64 Between ports

 65 Poles hold them up

 66 Diarist Frank

 67 Percolate

DOWN

  1 Flow back

  2 Singer Rawls

  3 Roaming freely

  4 Jot down

  5 Dennis, for one

  6 Holiday shelf sitter

  7 Competent

  8 "___ of Our Lives"

  9 Not serious

 10 Taste found in aged cheese

 11 Poet Angelou

 12 Terrific, in '90s slang

 13 Fermented rice drink

 18 Delphi figure

 22 Some are sprayed on

 23 New version of an app

 24 Sculptors' trunks

 26 Accompany

 29 Particles such as F-

 30 Upholstery fabric

 31 Homes that don't need air conditioning

 32 Sydney attraction

 33 Speakers' platforms

 34 Sauna descriptor

 37 "Russian Doll" or "Better Call Saul"

 40 Winery visitor

 42 Prefix with "dynamic"

 45 "Toy Story 4" and "Ocean's 8"

 46 Change the title of

 47 Like the egg, some say

 50 Fail to mention

 51 Horse feature

 52 Proper ___

 53 Activist Parks

 54 "College GameDay" airer

 56 Many CEOs' degrees

 59 See 63-Across

 60 Last letter

 61 Hit with a laser

Solution