Puzzle

 ACROSS

  1 "Fat chance!"

  5 Org. of Wizards and Magic

  8 Health info site

 13 Kid ___ ("Day 'N' Nite" artist)

 14 Mystical radiance

 16 Open courtyards

 17 On any occasion

 18 Half a supposedly telepathic pair

 20 Barking marine animals

 22 Model airplane set, e.g.

 23 It's big and blue

 24 Long, pointy weapons

 26 Like a Starburst

 28 Event with snow biking

 30 Untidy stacks

 34 Intense dance party

 35 PC hookup

 36 Watch in astonishment

 37 Unrefined metal

 38 Toasted breakfast treat

 40 "The Pioneer Woman" host Drummond

 41 Streep's "Out of Africa" role

 43 1 or 66: Abbr.

 44 Untidy stack

 45 ___ Lauder

 46 "If Beale Street Could Talk" author

 48 Go bad

 50 Snazzy electric cars

 51 "I did NOT need to know that!"

 54 Rock greats' shrine, briefly

 55 Choices

 56 Exhilarating baseball finish, or a hint to 18-, 28- and 46-Across

 59 Easter Bunny's favorite breakfast spot?

 62 Disney princess from Atlantica

 63 2020 also-ran Andrew

 64 "Finished!"

 65 Decorate for showings

 66 GameCube ancestor

 67 Instructions unit

DOWN

  1 Score 100% on

  2 Honda CR-V, e.g.

  3 "This queen is gonna treat herself!"

  4 Door buster?: Var.

  5 Polish business?

  6 Pals

  7 "___ you sure?"

  8 "Hold on ... huh?"

  9 And so on: Abbr.

 10 Supportive garments

 11 Four laps, on most tracks

 12 They're often plotted

 15 Egyptian crosses

 19 Score such as 1-1

 21 Uru. neighbor

 24 Light at a 34-Across

 25 Gems strung on a necklace

 26 Like this answer's position

 27 "Uh-huh"

 29 Explorer's reference

 31 Picture taken by a drone, perhaps

 32 Spanish rice dish

 33 Spirited horses

 36 "Season's ___!"

 38 Apartment door feature

 39 All-hrs. bank amenity

 42 Crosses (out)

 44 "Arthur" channel

 46 Blink of an eye

 47 Blink of an eye, briefly

 49 Reaction to a punch

 51 "Jabberwocky" opener

 52 Convenience store

 53 Hip bones

 55 Knotty wood

 57 Frat party barrel

 58 Obi-Kenobi link

 60 Number of states with three-word capitals

 61 Verve

Solution