Puzzle

ACROSS

  1 "Mamma Mia" band

  5 Skin opening

  9 Two kings, perhaps

 13 Become a member

 14 Asian Risk territory that borders Europe

 15 Senate staffers

 17 Youngest Bronte sister

 18 New England NFL team, informally

 19 Male bee

 20 Words before "tape," "paper" & "ribbon," respectively

 23 Gopher's opening

 24 Author Rand

 25 Tycoons

 28 Add up

 30 "Ali ___ and the Forty Thieves"

 34 Wed on the sly, and on the fly

 35 Exhilarating shopping outing

 37 Canon model

 38 Words before "show," "piece" & "play," respectively

 41 Little devil

 42 Part of LGBTQ+, informally

 43 Bit of prevention, in a proverb

 44 Prone to prying

 46 Situp muscles

 47 Successfully reach

 48 Muffin morsel, maybe

 50 Cookie that some twist

 51 Words before "reading," "language" & "music," respectively

 59 Like s'mores

 60 Effortlessness

 61 Darts, for a blowgun

 62 Ponders, with "over"

 63 Let off, like light

 64 Some Amazon vehicles

 65 Talk back to

 66 Discreet attention-getter

 67 Greek god with a bow

DOWN

  1 Nearly closed

  2 You might have one to pick

  3 Tricky spot

  4 Oldest "Star Wars" movie's retroactive subtitle

  5 They grow in the dark

  6 Make a speech

  7 Give one star, perhaps

  8 "Frozen" queen

  9 Rice source

 10 Site for renters and hosts

 11 Worshipped celebrity

 12 Contact solution brand

 16 "Get it now?"

 21 Adjective in Lincoln's nickname

 22 Titled

 25 Word heard at the start of a test

 26 Car rental choice

 27 Lopsided wins

 28 Extends over

 29 Large containers with spigots

 31 Big health insurer

 32 One spelling for an Italian lawn game

 33 Very pale

 35 Pierce with a toothpick

 36 Acted over-the-top?

 39 Love poetry Muse

 40 Video game function that preserves your progress

 45 Alpine songs

 47 Will of "Arrested Development"

 49 Chasm

 50 Desert mirage, maybe

 51 ___ Grand Las Vegas

 52 Notes promising banknotes

 53 City SE of Baton Rouge

 54 Profound

 55 Vegetables in West African cuisine

 56 Epps of "House"

 57 "Er, don't think so"

 58 Defeat

Solution