ACROSS
 1 Consciousness flow is practice of the endless duty (5,2,7)
 9 Ribbon in Florida with little weight (7)
10 Dessert is thrilling if you serve the last bit first (7)
11 Field strategist to pay dance company in Germany, alas (8,5)
13 Desire liberation vow (6)
15 Ha! Irregular track obscures start of derby for Seabiscuit (8)
17 They often involve mistaken identities and throwing some dice (8)
19 Cajun style adopted by crazy decorator (6)
22 Bonuses distributed by princess—she’s clear after a meal (3,4,6)
25 Behold a gong broken in the distant past (4,3)
26 Less in focus, more like the police? (7)
27 Ate both? Revolting! (7,3,4)
DOWN
 1 Singular university cluster? (4)
 2 A climbing con in solitary (5)
 3 Sink to one’s death on rising shakefully, for instance (3-4)
 4 We’re told tube purchase happened quickly (4,2)
 5 At first, had mixed up lineage of a 19th-century philosopher (8)
 6 Loosened and lifted sticker. So? (7)
 7 Popular songs: “Wallop,” “Punch,” “Belt,” “Whack,” “Box”… (3,6)
 8 Informed, we think: “No change!” (2,3,4)
12 Bar #8 (9)
14 Meets up in tombs—creepy! (5,4)
16 Rolled oats, open a small amount (8)
18 “Country Hideaway” sign (7)
20The Last Vessel sounds like a game (7)
21 Cambridge school, home to one science-fiction dork (6)
23 Watch the return of migrants (5)
24 Sausage that might be spoiled (4)
ACROSS 1 STUC(COW + OR)K 6 rev. 10 METRO + NOME 11 2 defs. (LEG IT) 12 CON + GO 13 anag. 14 2 defs. 15 anag. 18 “lesson” 19 A + STAIR + E 21 FLOW + ER + POT (rev.) 23 SAM + BA 25 hidden 26 NOC(TURN)AL 27 New York = New Amsterdam 28 ALLEN’S CREW
DOWN 1 rev. 2 UNT(ANGLE)S (nuts anag.) 3 CROCODILE + TEARS 4 anag. 5 “real inn” 7 LEG + OS (rev.) 8 2 defs. 9 KLEE + NEXT + ISSUES 14 (Tom Swiftie) 16 2 defs. 17 P + ARTICLE 20 S + PINAL (Palin anag.) 22 [d]OWNER 24 AG + LOW

Kosman and Picciotto explain “How to Work The Nation’s Cryptic Puzzles” at thenation.com/puzzle-rules.