1 Exams first administered in 1926 : SATS
5 View from St. Moritz : ALPS
9 “I thought you were my friend!?” : ETTU
13 Load of laundry : WASH
17 Jeweler’s unit : KARAT
19 Complete journey … or what 84-Down makes in this puzzle? : ROUNDTRIP
21 Woodworker’s spinner : LATHE
22 Like Yeats, but not Keats : IRISH
23 Aids in car buying : AUTOLOANS
24 Remove from packaging : UNBOX
25 Complete some reps : DOASET
27 In the red : OWING
28 Do-to-do delivery? : OCTAVE
29 Joan Cusack and Robert Downey Jr. each spent one season on it, for short : SNL
30 Certain court documents : BRIEFS
33 In which 1 + 1 equals 10 : BINARY
36 Former senator Kennedy : TED
37 Completing a cycle, like 84-Down in this puzzle? : GOINGFULLCIRCLE
40 “Battle Hymn of the Republic,” for one : WARSONG
42 Borrower’s note : IOU
43 Like many verification codes : EMAILED
46 Impressively tough, in slang : BADASS
47 Crocheting template : PATTERN
50 Re-lease? : SUBLET
52 Nickname for a 2000s Yankee slugger : AROD
53 Montreal hockey player, to fans : HAB
54 Check scanner, for short : ATM
56 A.P.R.-lowering option : REFI
57 A.P., Reuters, etc. : WIRES
59 Hudson Bay or the Caspian : INLANDSEA
63 Hair-lightening brand : SUNIN
64 Sherlock Holmes, e.g. : LONDONER
66 Apt central entry for this puzzle : EARTH
67 The Lone Ranger, to Tonto : KEMOSABE
69 Gender-neutral possessive : ONES
71 Possesses : HAS
72 Office message : MEMO
73 Millimeter-wide photo used for conveying secret messages : MICRODOT
77 Pants, informally : BRITCHES
81 Roofed porch : LANAI
82 Late-night sub, say : GUESTHOST
86 Garfield’s predecessor : HAYES
88 Weary cry : ICANTGOON
90 Company whose name ends in an exclamation point : YAHOO
91 Steak option in northern Canada : MOOSEMEAT
93 Celebrity chef Hussain who won “The Great British Bake Off” : NADIYA
94 However : YET
95 Fit to serve, in a way : EDIBLE
96 Ireland, poetically : ERIN
97 Newlyweds’ booking : HONEYMOONSUITE
104 Behind : LATE
105 Gives a lot of attention, with “on” : DOTES
107 Old ___, Conn. : LYME
108 Supermodel with a palindromic name : EMME
109 ___ Johnson Sirleaf, Africa’s first elected female head of state : ELLEN
110 “What have we here!” : OOH
111 “They’ll grow out of that” … or a description of eight squares in this puzzle : ITSJUSTAPHASE
115 Every member of the C.I.A.’s K-9 unit : LAB
116 “___ Affaire de Femmes” (1988 French classic) : UNE
117 It can be quite sappy : TREE
118 Half of an exchange : TAT
119 “Let’s do it!” : IMIN
120 Texter’s “As I see it …” : IMO
121 Co. that introduced Dungeons & Dragons : TSR
122 Means of getting unstuck : HINT
123 Black ___ : OPS
124 Margaret Thatcher, e.g. : TORY
125 Chiding sound : TSK