We’re in This Together solution
by Kegler

At six intersections, “U” and “I” are replaced by “WE”.

We’re in This Together solution grid

Across
1CAT + SUPS
6ALE + P,H
10TIED (DIET anag) {TWEED}
12OAHU (hidden)
13HE + I + R {HEWER}
14TENO + R (TONE anag)
15POURING (I RUN GOP anag) {POWERING}
16SUEDE ("SWAYED" hom)
17PEDDLER ("PEDALER" hom)
19MAD + E
20R + ARI + TY
24F(LOU)RY {FLOWERY}
26S(U)ET {SWEET}
28I + SO(BAR)S
31hAUNTS
33DUeLLING {DWELLING}
35S(T)ILT
36AH + EM (rev)
37ALSO (LAOS anag)
38T(E)AM
39PSYCH (hidden)
40RESISTS (SISTERS anag)
Down
1CO(H)OS
2AS + EX + U + AL
3TOURED (ROUTED anag) {TOWERED}
4STRU(D)EL (RESULT anag)
5P(EE)P
6A + VO + I'D {AVOWED}
7E(ASIL)Y (rev)
8P(H)ONE
9HUNGaRY
11UTTER (2 defs) {WETTER}
17P + AIR {PAWER}
18E + RR + S
21T(S)UN + A + M'I (rev)
22R(ETRE)AT
23KIDNAP (INK PAD anag)
24F + OLKSY (YOLKS anag)
25Y + ALTA
27IN(CHE)S {WENCHES}
29SILLS (2 defs) {SWELLS}
30A + ITCH
32S(EM)IS (ME rev)
34G + LEE