All Points Bulletin solution
by Kegler

Five squares contain multiple letters; in each case, these letters can be anagrammed to form a number from 1 to 5.   When connected in sequence, A STAR IS BORN.

All Points Bulletin solution grid

Across
1S(C)OLD
6VENOMOUSLY (ONLY MOVE US anag) {ENO==>1}
12CAP + O
13CASH + EW (WE rev)
15V(OIL)A
16QUOTAtions
17ROSE (2 defs)
18SLOTH (hidden)
19NE(STEG)G (rev)
21TEE-HEE ("TEA HE" hom)
22ETHERNET (hidden) {ETHER==>3}
23RAY (2 defs)
25FROUFROU (UFO FUROR anag) {FROU==>4}
26A STAR IS BORN
28AD + APT
30C(P)R
31U + NIT (TIN rev)
32RA + MROD (DORM rev)
33O + PENS + EA
36MA(CAt)W
39DEL + I (rev)
41ENOKI (hidden)
42LOUPE ("LOOP" hom)
43TRIODE (EDITOR anag)
44RUTh'S
45SELF-EVIDENT (LEFT ENDIVES anag) {FEVI==>5}
46BOWTIES ("TOW BUYS" spoonerism) {OWT==>2}
Down
2CAN(O)E
3OPTS (SPOT anag)
4LO(VET)T
5DROSERA (ORDERS A anag)
6VEIL ("VAIL" hom)
7OENOLOGY (LOONY EGO anag) {OEN==>1}
8M(C)AT
9U + SURER
10SHOEHORNS (SHE HONORS anag)
11LETT ("LET" hom)
12CORNER THE MARKET (MATTERHORN CREEK anag) {ERTHE==>3}
14WATER FOUNTAINS (TAIWAN FORTUNES anag) {RFOU==>4}
20S(E + SAME)OIL
21TBS + P
24A(R)ID
27B(eR'EW + PU)&B (UP + WE'Re rev)
29PRO + K(OF)IEV {FIEV==>5}
30CO + CO + ON
31UNDERTOW (DETOUR NW anag) {TOW==>2}
34ELITE (E TILE rev)
35IN RE (ERIN anag)
37A + LEE
38gAUNT
40ETUI (hidden)