1 No longer taking, as a medication : OFFOF
6 What a light bulb represents in cartoons : IDEA
10 Led, as a meeting : RAN
13 Where soju is the national drink : KOREA
14 Overwhelmed by hilarity, hyperbolically speaking : DEAD
15 Style of San Francisco’s Coit Tower, informally : DECO
16 Visa, for one : CREDITCARD
18 Foreboding sign : OMEN
19 Take advantage of : USE
20 ___-di-dah : LAH
21 Still awake after midnight, say : UPLATE
23 Furry feet : PAWS
25 Thief at work in a bustling crowd : PICKPOCKET
28 “OK, that wasn’t totally true” : ILIED
30 Favor precursor? : POR
31 Loudly laments : KEENS
32 Triumph over : DEFEAT
34 “Don’t think so” : NOPE
36 One might be found at a roast : INSULTCOMIC
40 Pulitzer-winning writer James : AGEE
41 Philanthropists : DONORS
44 Dodge Charger, e.g. : SEDAN
48 Nile reptile : ASP
50 What an unsatisfied customer might leave behind : NOTIP
51 Modern combat athlete, informally : MMAFIGHTER
54 Expectant parents’ selection : NAME
55 Revolted : UPROSE
56 Home of MoMA and M.S.G. : NYC
58 The Trojans of the N.C.A.A. : USC
59 Shape for a child’s chicken nugget, informally : DINO
60 Show interest on a dating app … or what 16-, 25-, 36- and 51-Across must do to be successful? : SWIPERIGHT
64 Steely determination : GRIT
65 Garment worn by the Little Caesars mascot : TOGA
66 Blood of the gods, in Greek mythology : ICHOR
67 Up to this point : YET
68 Waxy imprint : SEAL
69 Montana city nicknamed “The Richest Hill on Earth” : BUTTE