puzzle

 ACROSS



  1 Chip with toppings

  6 Embassy employee

 13 Loud noisemaker

 15 Knights ___ (Catholic crusaders)

 16 Makes happy

 17 Wardrobe fresheners (SCATHES anagram)

 18 Legume that sounds like a letter

 19 Make very happy

 21 "No ___, ands or buts!"

 22 Used to be

 23 The "R" of BART

 26 About 30% of Earth's land

 29 "One Night in Miami" star Goree

 31 Where a pop-up may send you

 35 Emerald or aquamarine

 37 Love, in Italian

 39 Price add-on

 40 Fertility lab eggs

 41 Arrivals of notable things

 43 Bit of gear for a cross-country trip?

 44 Stimpy's pal

 45 Dough raiser

 46 Domesticates

 48 Inconsequential matter

 50 Pull to a garage

 52 Period before Easter

 53 Memory failure

 55 Silent communication syst.

 57 Altar vow

 59 Bert's friend

 61 Afternoon snooze

 64 Proportionately

 67 Far from forthcoming

 69 Turtle candy ingredient

 70 Diabolical

 71 Coastal region, or what each starred answer has?

 72 Holy council

DOWN

  1 River in Egypt

  2 The "A" of BART

  3 *With some of 4-Down and all of 22-Down, shoo

  4 Book after Daniel

  5 End of an ultimatum

  6 Befuddled

  7 *With some of 6-Down and all of 24-Down, disentangle

  8 Film lover's network

  9 Ladybugs' prey

 10 Staff symbol, in music

 11 They're thrown into a metaphorical ring

 12 Trauma ctrs.

 13 Tablet download

 14 Code-cracking org.

 20 Three-month period

 22 Technique

 24 Role

 25 Latin for "that is"

 26 Scrub, as a mission

 27 Cut off

 28 Persian, today

 30 It may cool into obsidian

 32 Response to "Who's there?"

 33 Spoken for

 34 Be

 36 Woman in a Derek and the Dominos hit

 38 Aware of

 42 *With some of 54-Down and all of 66-Down, well-established

 47 *With some of 56-Down and all of 68-Down, versatile type of tire

 49 Groups of plants

 51 Relinquishes

 54 Black Panthers co-founder Bobby

 56 Disreputable

 57 "Dies ___" (hymn)

 58 Explorer on Nick Jr.

 60 His home is next to Homer's

 61 El ___ (cause of disrupted weather)

 62 Fired up

 63 Ab's neighbor

 64 Some laptops

 65 Parisian pal

 66 Actor Danson

 68 "My boy"

solution