Puzzle

 ACROSS

  1 Community rec center

  5 ___ Perignon

  8 "Ships of the desert"

 14 Headset part

 16 Unstable societal condition

 17 Swimsuit option

 18 Smaller clone of oneself

 19 Nondisclosure enthusiast?

 21 Org. that has your number

 22 Submissive

 23 Upper limit enthusiast?

 28 Recedes

 32 LBJ's successor

 33 Sweet and ___ soup

 34 Archery missile

 35 Word after "first" or "foreign"

 36 Woodsy smell enthusiast?

 39 She's sheepish

 40 Staircase parts

 42 Drying kiln

 43 ___ carte

 44 Prefix meaning "six"

 45 Party policy enthusiast?

 48 Goatee spot

 50 "___ the ramparts ..."

 51 Houston basketball player enthusiast?

 58 Meditation directive

 59 He delivers news

 62 Introducer of a radioactivity counter

 63 Triple digits?

 64 Fluttery poplars

 65 Acid

 66 Former partners

DOWN

  1 So far

  2 Gaping mouth

  3 Note of referral?

  4 It might be universal

  5 Active sort

  6 ___ in a lifetime

  7 Come upon

  8 New Jersey city on the Delaware

  9 Japanese cartoon genre

 10 Nickname

 11 Arab chieftain

 12 Fruit with a Key variety

 13 Prophet

 15 Flashin' Fruit Punch maker

 20 Physicians' org.

 21 Israeli or Arab

 23 1929 stock market event

 24 Companies with connections, for short

 25 "There's ___ in team"

 26 Staple dispenser

 27 Certain refrigerant

 29 Home electrical panel

 30 Derby hat

 31 Take an oath

 34 "___ boy!"

 37 Scot's denial

 38 PC port

 41 Thing to track

 45 Soda bottle units

 46 Bach's "Mass ___ Minor"

 47 Force to confess, say

 49 Lady of Troy

 51 Baltic capital

 52 Snake eyes

 53 Poker unit

 54 Color-changing gem

 55 Rowers, informally

 56 Raced

 57 Drink often served with scones

 60 "To Autumn," e.g.

 61 "Without a doubt!"

Solution