Puzzle

 ACROSS

  1 Start sharing your feelings

  7 Catwoman portrayer Eartha

 11 Hydroelectric power source

 14 Himalayan language

 15 Unit in a tract

 16 Alexandra who writes the "Guardians of Eternity" series

 17 One often contains an "In case you missed it" heading

 19 Sis, maybe

 20 Award for Laura Dern

 21 Related

 22 Film-evaluating grp. renamed in 2019

 23 Missing galoshes may turn up here

 26 A in some teachers' records?

 29 Like an awesome party

 30 Preschool snooze

 31 Tribute poem

 33 Kind of oil in Sichuan cold noodles

 36 Seasonal use for an old pillowcase

 40 Go along with?

 41 Dated

 42 Queens airport code

 43 Green prefix

 44 Postponed

 47 It might list many meetings

 52 "Hey, sailor!"

 53 Ready to pick

 54 Crush, as a garlic clove

 58 Greenwich Village sch.

 59 Soda fountain bonuses ... and what 17-, 23-, 36- and 47-Across get?

 61 Tater ___

 62 Symphony hall section

 63 Underground Railroad icon Harriet

 64 Respond litigiously

 65 Has to pay

 66 Jewelry fasteners

DOWN

  1 Aware of

  2 Church seats

  3 Grand-scale

  4 Christmas, in Rome

  5 Villain in a 2015 "Avengers" movie

  6 "Easy" dessert

  7 "The Metamorphosis" author

  8 Trap during winter

  9 Gather heat online

 10 "Ideas worth spreading" nonprofit

 11 Not necessarily

 12 Like ducks and geese

 13 "Sorry about that!"

 18 Suitable for mature viewers

 22 Damp

 24 Skedaddle

 25 Circus jumper?

 26 Pay for a poker hand

 27 UPC code features

 28 Seasoning trade path

 32 SAT company

 33 Worked with a needle

 34 Sorceress, for one

 35 Old-style "Holy smokes!"

 37 Like a humblebragger

 38 Ray of fast-food fame

 39 Innovative comic Gilda

 45 Toddler or toy dog, say

 46 Excited Spanish cry

 47 Needs' relatives

 48 "Such a tease!"

 49 Common cursor shape

 50 Renaissance Faire lord

 51 Olympic swords

 55 National Mall trees

 56 Hit, as a bass

 57 Tax IDs

 59 Progressive spokesperson

 60 "And so on" letters

Solution