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 1 Appears as veins in the ear (5)

 4 Arguing and going out around East Broadway at 1st (8)

 8 They need oxygen when dress is engulfed by receding water (7)

 9 CO2, for instance, trails migrant blue whales (7)

11 Free verse rang for printers (9)

12 A sign of renewed vigor (5)

13 Overdose, if making a comeback, is a 20? (4)

14 F—after this you’d want to try again (5,5)

17 Man’s small combo, largely pleasant and theatrical (10)

19 Frank O’Hara’s chief writing implement (4)

22 Loved at the cusp, oddly (3,2)

23 What the diligent student did—or the bank robber? (4,5)

24 Empress’s wrap grabbed by returning soldier, perhaps (7)

25 Grandma hugs Irving—what bliss! (7)

26 Fears net is broken with a snap (8)

27 Shortz and vanden Heuvel pursuing silence in huts (5)

 1 Announce frequently: “Love is on the cutting edge” (5,2,3,3)

 2 Terribly angered! (7)

 3 and 23 Discussed light check in underground vehicle? (6,5)

 4 One who breaks the law with reckless speed on winding road (9)

 5 and 21 Infantry? (5,2,4)

 6 Broadcast in jeans, wearing shirt (8)

 7 Country song, for example: popular but retro (7)

10 What paparazzi might be doing with meteors (8,5)

15 Maritime magnate—bam!—sports a black eye (9)

16 Monk and fur trader? (8)

18 Inside, Brahms met an Austrian composer (7)

20 Rose, while holding up man and baby, say (3,4)

21 See 5

23 See 3

 

1 OC + TET (rev.) 4 PAN(ORAM)IC (roam anag.) 9 [i]DEA[l] + REST 10 anag. 11 hidden 12 anag. 13 2 defs. 14 2 defs. 17 STALAG + MITE 19 anag. 22 I’M PUG + NIN + G 4 T-OP[t]IC 26 “prayer-y” 27 THOR + EAU 28 DISC OVER S 29 anag.

DOWN 1 [b]ORDER 2 TRA(FF + I)C (cart rev.) 3. TIE + RED 4 PET + ROLE + UM 5 NEAT + H 6 REP + ORTER (rev.) 7 MAR-T-I[t]AL 8 CON TENDER 13 R(ESH)IPPED (she anag.) 15 LIT + I + GATES 16 KA(NGARO)O (oak rev., organ anag.) 18 AP(PEAL)S (spa rev., pale anag.) 20 SU(PR)EME 21 ATHO + ME (oath anag.) 23 [s]IREN + E 25 2 defs.