DAILY THEME ACROSS 1 When Polonius says "Brevity is the soul of wit" 6 Tusked beast 10 Kind of threat 14 Swoon 15 Alan who played Captain Pierce 16 Essential point 17 Agonizes (over) 18 With 61- and 37-Across, famous line by 53-Across in [see circled letters] 20 The "E" in HOMES 21 Nubian h**ne of opera 22 Family member who was probably adopted 23 Hairstyle for 53-Across, colloquialy 28 Place where trials are conducted 29 Hitting blackjack after blackjack, say 33 Michelangelo masterpiece 36 A few 37 See 18-Across 43 Ambience 44 "Same here!" 45 Is victorious in 48 Swindles 53 Iconic role for 2-/51-Down 56 "What have we here?!" 59 Knock 'em dead 60 Online crafts seller 61 See 18-Across 64 Like old, neglected sweaters, maybe 65 Renaissance Faire instrument 66 Sign of things to come 67 Tree-lined walkway, in France 68 Make slo-o-o-ow progress 69 Concealed mike 70 Entitled sorts DOWN 1 Influence 2 With 51-Down, late, beloved actress 3 Certain marketing gimmicks 4 Hell-bent (on) 5 "___ a trap!" 6 "Harumph!" 7 Brand of artificial fat 8 Deal with a broken teleprompter, say 9 Rae Sremmurd, e.g. 10 Makeup of the planet Hoth 11 Nosedive 12 Squeak stopper 13 Turnoff for drivers 19 "Doctor Faustus" novelist Thomas 24 Mont Blanc, e.g., to locals 25 Cripple 26 Heeds 27 Merit badge displayer 30 Figure on an Aussie Xing sign, perhaps 31 World Series official 32 Formerly named 34 "___ late!" 35 Tennis champ Aga**i 37 Deviate during flight, as a rocket 38 Non's opposite 39 Coffee container 40 Speak with a gravelly voice 41 Amy Adam's "Man of Steel" role 42 Puppy sounds 46 British derrière 47 So far, informally 49 Chant after a fútbol goal 50 In fine ______ (healthy) 51 See 2-Down 52 Agree to a proposal 54 Country singer Judd 55 Modern lead-in to space or security 56 Real head-turners? 57 Drag 58 Not deceived by 62 Beer barrel 63 Having four sharps 64 Reference in "Treasure Island"