SOLUTION TO PRIZE CROSSWORD No 15,812:

ACROSS: 1 Potato crisp. 9 Herring. 10 Screw up. 11 Has. 12 Sleight. 13 Emperor. 14 Emu. 15 Recto. 17 Sofia. 18 Sales. 20 Abeam. 22 Tie. 24 Diorama. 25 Igneous. 26 Pen. 27 Stirrup. 28 Channel. 29 New Year’s Day. DOWN: 1 Perpetual motion. 2 Trigger. 3 Tight. 4 Casserole. 5 Irrupts. 6 Power of attorney. 7 Chaste. 8 Sparta. 16 Crab apple. 18 Sadist. 19 Sparrow. 21 Mansard. 23 Easily. 25 Incur.