puzzle

 ACROSS

  1 Pop bubbles?

  5 Places to build muscle

  9 People from Copenhagen

 14 Rice-shaped pasta

 15 "Not guilty," e.g.

 16 Wordless part of a text, perhaps

 17 Bit of coffee

 18 Serena ___ (tennis feat)

 19 Los Angeles athlete

 20 Nickname that drops "ediah"

 22 Some eco-friendly trains

 24 So-so

 26 Nonbinary person, for short

 28 Bothered a lot

 29 Antipollution org.

 30 Gen ___

 31 Weed

 32 ID on a W-2

 33 Debt notes

 35 Like a 270-degree angle

 39 Sister city of Gomorrah

 41 Automated web scraper

 43 Windshield device

 44 Not outdoors

 46 Lead-in to "colada"

 48 "Without further ___ ..."

 49 Feeling down

 50 Reassuring touch

 51 Stark father in "Game of Thrones"

 52 Market price

 54 Tennis legend Arthur

 55 Nickname that anagrams to 58-Across

 56 Party person?

 58 "Color" of anger

 60 Shaq's surname

 61 Russian form of John

 63 Heart, on Facebook

 66 Slowly sip

 67 Thumbs-up, on Facebook

 68 Influence

 69 ___ Park, Colorado

 70 Killed, as a dragon

 71 Poker stake

DOWN

  1 Key ring item

  2 Fury

  3 *Before: Dance move involving the fingers / After: Enliven + Without question

  4 Sector

  5 Rte. finder

  6 *Before: Treat for a dog / After: Bankrupt + Post-workout massage

  7 Like some bad apples

  8 "Likewise"

  9 *Before: Fiji product / After: Held in + Dilute

 10 Italian almond cookies

 11 Finnish telecom giant

 12 DVD player button

 13 Knights' titles

 21 *Before: Tennis format that isn't single-sex / After: Confused + Commits more

 23 Guitar attachment

 24 Soccer star Lionel

 25 Printer brand

 27 Prefix for "natal"

 34 Sponge (up)

 36 Fluctuating, or two words needed to understand the starred clues' "After" parts

 37 Passover feast

 38 Chip away at

 40 Drilling agreement

 42 *Before: Beverage drinker's comic reaction / After: Regurgitate, baby-style + Dismantle

 45 Pitcher hidden in "brewery"

 47 "I'll pass"

 52 Earth neighbor

 53 Vigilant

 54 Blacksmith's block

 56 Rod's counterpart

 57 Afflicts

 59 "Frozen II" queen

 62 Unused

 64 Brewery container

 65 Blinker?

solution