- 1 ADS
51D YouTube video lead-ins
46325 - 2 AXE
68D Hacker's need
34269 - 3 UNIT
2D College course part
28230 - 4 STEP
20A Flight component
25229 - 5 ENE
45A Suffix with ethyl
24403 - 6 ANON
14A When Juliet tells the Nurse she will come in from the balcony
20275 - 7 ROO
63A A. A. Milne hopper
20189 - 8 DOE
65D Buck passer, maybe
19192 - 9 ATSEA
61A Totally befuddled
18194 - 10 ELENA
31D Justice Kagan
15178 - 11 AGUA
11D Lago or río contents
13103 - 12 TREAT
57D See 56-Across
1394 - 13 SEND
13D Texter's button
12133 - 14 PEI
39A J.F.K. Library architect
11121 - 15 MRT
42A "Rocky III" actor (and an apt answer in this puzzle)
1198 - 16 ABIDE
15A Stand
1181 - 17 ORR
60A Bruins legend Bobby
10235 - 18 RUIN
19A Wreck
1097 - 19 TASTE
28D See 26-Across
8117 - 20 MEW
41A Catty remark?
771 - 21 AFTER
26A With 28-Down, disagreeable quality of diet sodas
770 - 22 RECON
9D Scout's mission, for short
753 - 23 TITLE
52A With 54-Down, song with the same name as its album
694 - 24 OFTEN
29A With 30-Down, frequently
565 - 25 TRACK
54D See 52-Across
516 - 26 OAS
38A Defense grp. since 1948
4105 - 27 WATER
5A With 7-Down, incapable of leaking
448 - 28 COATI
58D Kinkajou cousin
445 - 29 ATEN
61D "... ___-foot pole!"
350 - 30 TOLET
52D Sign of availability
349 - 31 FLARE
27D Roadside attention-getter
340 - 32 LOGIC
18A Mr. Spock's forte
338 - 33 HOMER
59D Go yard, in baseball slang
337 - 34 QUIP
12D Witty bit
337 - 35 TOKE
3D Joint action
337 - 36 AGUE
16A Chill producer
285 - 37 TIMES
30D See 29-Across
226 - 38 NEWER
34D Built later
225 - 39 IRENA
53D "The Faerie Queene" woman
222 - 40 AROUSAL
48A Alarm clock's purpose
217 - 41 JUTS
1A Protrudes, with "out"
217 - 42 KAHLO
21A Self-portraitist Frida
216 - 43 JAWS
1D Thriller set on Amity Island
139 - 44 LAPD
22A "Lethal Weapon" force, briefly
139 - 45 ABOMB
26D Enola Gay's payload, in brief
129 - 46 MOL
40A Chem. unit
123 - 47 WIKI
17A Popular online reference, for short
123 - 48 BESTIR
73A Incite to action
110 - 49 PASTTENSE
23A History is recorded in it
110 - 50 DUTCH
56A With 57-Down, meal for which everyone pays his or her own way
19 - 51 FARLEFT
10D Socialists, on the political spectrum
16 - 52 SNIPPET
4D Small excerpt
15 - 53 12
- 54 IDI
55A Exiled Amin
0120 - 55 ERI
66D Verdi aria "___ tu"
076 - 56 AWN
43A Wheat bristle
045 - 57 ABAB
62D Simple quatrain pattern
028 - 58 NEWEL
32D Handrail support
023 - 59 UNU
49D First Burmese prime minister
022 - 60 FAQS
10A Online info sources
019 - 61 TIGHT
7D See 5-Across
017 - 62 EDILE
8D Roman magistrate
014 - 63 ENCORES
70A Performance extras
014 - 64 CFL
47D North-of-the-border grid org.
013 - 65 NBATEAM
67A Heat or Thunder
09 - 66 BLATANT
33A Not at all hidden
08 - 67 NOURI
37D Michael of "Flashdance"
08 - 68 TAXRATE
71A Something in brackets
07 - 69 TRS
69D ___-80 (classic computer)
07 - 70 TAKEIN
72A Adopt, as a stray
06 - 71 BEECHES
46A Trees with triangular nuts
05 - 72 INUTILE
36A Pointless
05 - 73 WALKS
5D Beats the rap
05 - 74 ARAPAHOE
24D Ally of the Cheyenne: Var.
04 - 75 LEADETH
64A Shows the way, biblically
03 - 76 ABOAT
6D "Three Men in ___" (Jerome K. Jerome novel)
02 - 77 PUF
44A Sta-___ fabric softener
02 - 78 FORMATION debut
50A Following the nine black squares in the center of the grid, a hint to five pairs of answers in this puzzle
01 - 79 01
- 80 01