Puzzle

 ACROSS

  1 Command used with Cut and Copy

  6 IV amounts

  9 Not suitable

 14 Bargain-basement

 15 Pitching stat

 16 Takes it easy

 17 "Hurry up, dancer!"?

 19 Happen next

 20 Like some coincidences

 21 Accurate statement

 22 Alpine transport

 25 "Hurry up, music producer!"?

 29 Shady spots in gardens

 31 Sleep

 32 Mowgli's bear friend

 33 Celebrated

 35 "Hurry up, smelter!"?

 40 League members

 41 Participate in, as a contest

 43 Cheese gadgets

 47 Huge Starbucks size

 48 "Hurry up, watchmaker!"?

 51 Pay attention to

 52 "My bad!"

 53 ___ Cheese (Doritos flavor)

 55 Japanese dog

 57 Request for a next-day delivery, say, and what each of 17-, 25-, 35- and 48-Across is

 61 In need of sleep

 62 "___ the season ..."

 63 "I'm at your service"

 64 Plain bagels don't have them

 65 Sault ___ Marie

 66 Spy's mission, for short

DOWN

  1 Mac alternatives

  2 Response to a rubdown

  3 Red or Dead

  4 Become entrenched

  5 Blunt blade

  6 Salsa singer Cruz

  7 Stream

  8 What old sofas do

  9 Suffix for "percent"

 10 Like some healthy yogurt

 11 ___-Lorraine

 12 Full of moxie

 13 Fly with a reduplicative name

 18 Triceps' places

 22 Folder projection

 23 Be a blowhard

 24 Partner of "ready" and "willing"

 26 ___ Park, Colorado

 27 "Take ___ Train" (Duke Ellington song)

 28 Boat's steering device

 30 No-good

 33 Meal at a palace

 34 "Slippery" tree

 36 Grinder, by another name

 37 Small town descriptor

 38 Alternative magazine founder Eric

 39 Head, in Calais

 42 "Awesome!"

 43 What a bad winner does

 44 Novice

 45 Aim

 46 Tried out

 47 "(I'm a) Ramblin' Wreck From Georgia ___"

 49 Language group that gave us "kayak"

 50 Billiards shot

 54 Eleventh ___

 56 Commercials

 57 Signal boosts on Twitter, briefly

 58 Mo. when Kwanzaa starts

 59 Mood music?

 60 "The ___ & Stimpy Show"

Solution