Puzzle

 ACROSS

  1 City in eastern Mo.

  4 Jazz sessions

  8 Did a deli worker's task

 14 Palindromic sheep

 15 "I don't think so"

 16 Length of service

 17 *Patch substance, sometimes

 19 Patio furniture material

 20 Attempts, informally

 21 Dwell

 23 Height: Prefix

 24 *Like most Christmas trees

 28 Separate grain from

 30 Pertinent

 31 Worm's-___ view

 32 Make no decision about

 35 Acronymic furniture retailer

 36 *Bad space to land on after passing go

 39 Leveling wedge

 42 Nash who versified, "... if called by a panther, Don't anther"

 43 Army or fire insect

 46 Cockpit backup

 49 Jesuit missionary Francis

 51 *One attacking settled beliefs

 54 Humorist Bombeck

 55 Like cutting-edge gadgets

 56 Pale

 57 Snob descriptor

 60 Fifty-fifty flip, or a hint to each starred answer's first four letters

 62 Castle tower

 63 Tear apart

 64 Big Island garland

 65 Bygone town announcers

 66 What an interviewer does

 67 Baltimore winter hrs.

DOWN

  1 Having feeling

  2 Subject to spasms

  3 "Agent Running in the Field" author

  4 Sticks (out)

  5 Often-seared tuna

  6 Literature Nobelist Alice

  7 Bright finish

  8 Conflict

  9 Chief

 10 Stir together

 11 Word after "cold" or "crew"

 12 Obama ___ (2009-17)

 13 Man cave, perhaps

 18 Duck instrument in "Peter and the Wolf"

 22 Autographed

 24 In high style

 25 Wine barrel wood

 26 A, in Normandy

 27 Shark habitat

 29 Personal ID

 33 Play the flute

 34 "I can't believe it!" letters

 36 Verbal hide-and-seek giveaway

 37 Send an emoji, say

 38 Ortiz of "Whiskey Cavalier"

 39 The "S" of STEM, briefly

 40 Ad follower?

 41 Wall St. launch

 43 Safety feature on a hamster ball

 44 Usually victorious rivals

 45 Buses, bikes and such

 47 Hang without purpose

 48 Groups of eight

 50 One may be bulletproof

 52 Ghana's capital

 53 High heels, e.g.

 56 "No ifs, ___ or buts!"

 57 List-ending abbr.

 58 PETA target

 59 End of a short work week?

 61 Pen filler

Solution