1 Many a customer service assistant, nowadays : BOT
4 Animal on the state seal of Maine : MOOSE
9 Lacking slack : TAUT
13 Blackjack card worth 1 or 11 : ACE
14 Friend of Mickey and Goofy : DONALD
15 Actress Kendrick : ANNA
16 “___ all good!” : ITS
17 Nursery rhyme about a disastrous trip up a hill : JACKANDJILL
19 How salt and pepper may be added, in a recipe : TOTASTE
21 Southeast Asian language : LAO
22 Knotted neckwear : TIE
23 Susceptible to sunburn : PALE
24 “Four score and seven years ___ …” : AGO
26 Pesky summer swarm : GNATS
28 Nursery rhyme about the perils of sitting on a wall : HUMPTYDUMPTY
31 Doesn’t waste : USES
32 Dine : EAT
33 How heavy metal bands typically play : LOUDLY
37 ___ Z, a.k.a. Zoomers : GEN
38 Comedian Schumer or Poehler : AMY
39 Verbalize : SAY
40 Water, in French : EAU
41 Subject of a will : ESTATE
43 “My Zoom joke flopped … I guess it’s not remotely funny,” e.g. : PUN
44 Marx who co-wrote “The Communist Manifesto” : KARL
45 Nursery rhyme about the hazards of decaying infrastructure : LONDONBRIDGE
48 Energy, idiomatically : STEAM
51 Flat tire’s lack : AIR
52 Fashion magazine with a palindromic name : ELLE
53 Commodity measured in barrels : OIL
54 Hypotheticals : IFS
56 This typeface : ITALICS
59 Nickname for the World Series … or what you might call 17-, 28- or 45-Across? : FALLCLASSIC
62 Word repeated in a double negative : NOT
63 Operatic highlight : ARIA
64 Purpose : INTENT
65 Barely scratch (out) : EKE
66 Quality of a hoarse voice : RASP
67 Drunk-ish : TIPSY
68 Work with needle and thread : SEW