CRYPTIC CROSSWORD No. 16,826

ACROSS: 1 Pudding. 5 Put off. 9 Antenna. 10 Ortolan. 11 Ash. 12 Sensitivity. 13 Xylem. 14 Rectangle. 16 Audacious. 17 Actor. 19 Insuperable. 22 Tom. 23 Chaotic. 24 Tapioca. 26 Venous. 27 Headset.

DOWN: 1 Phalanx. 2 Dutch elm disease. 3 Inn. 4 Grain. 5 Provinces. 6 Tutsi. 7 Filling stations. 8 Enzyme. 12 Sumac. 14 Roof racks. 15 Amaze. 16 Apiece. 18 Rampant. 20 Patio. 21 Botch. 25 Pea.