SOLUTION TO PRIZE CROSSWORD No 15,602:

ACROSS: 1 Roof rack. 5 Inkjet. 9 Tutorial. 10 Tsetse. 12 Oats. 13 Employment. 15 Unforgettable. 19 Penny-pinching. 23 Interleave 25 Okra. 28 Irrupt. 29 Arrogant. 30 Gilded. 31 Open fire. DOWN: 1 Ration. 2 Octet. 3 Rare. 4 Crammer. 6 Nasty. 7 Jitterbug. 8 Twenties. 11 Sloe. 14 Iffy. 15 Unnatural. 16 Gun. 17 Thin. 18 Uprising. 20 Idea. 21 Cover-up. 22 Mantle. 24 Rupee. 26 Khaki. 27 Gown.