1 Wandering soul : NOMAD
6 “Dónde ___ la biblioteca?” : ESTA
10 Monster akin to a Japanese oni : OGRE
14 “Your concerns matter to me” : ICARE
15 Little crack : QUIP
16 Cook the surface of : SEAR
17 Noiseless? : QUITEQUIET
19 N.Y.C. home of Warhol’s “Campbell’s Soup Cans” : MOMA
20 What one size might fit : ALL
21 Completely wreck : RUIN
22 Rock and roll, but not rhythm and blues : VERBS
23 The Crimson Tide : BAMA
25 View of Earth from heaven? : ANGELANGLE
28 Newly decorated : REDONE
30 First-rate : TOPTIER
31 Grandma : NAN
32 Guy’s name that’s old slang for “OK” : JAKE
33 Podcaster’s income stream : ADS
34 Gymnastic feats … or what the two halves of the answers to 17-, 25-, 49- and 58-Across do? : BACKFLIPS
38 TNT’s sister channel : TBS
41 Blue feeling : FUNK
42 Animal hidden in this clue, if you read it aloud : EWE
44 Warm drink served from a tokkuri : HOTSAKE
46 Hyundai electric cars : IONIQS
49 “There are ways to leave”? : EXITSEXIST
51 Dog that’s not a purebred : MUTT
53 Railroad station : DEPOT
54 Post-it, e.g. : NOTE
56 Good name for a long-term investor? : IRA
57 ___ fees : USER
58 Spite over an incomplete mobile payment? : VENMOVENOM
61 Eat in style : DINE
62 Olympic equipment with body contact detection technology : EPEE
63 Dwindle, as support : ERODE
64 Oft-unwanted bread pieces : ENDS
65 Teri of “After Hours” : GARR
66 One section of a big band, informally : SAXES
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