SOLUTION TO PRIZE CROSSWORD No 15,799:

ACROSS: 1 Traffic light. 8 Re-enter. 9 Evening. 11 Hieroglyph. 12 Bill. 14 Pro forma. 16 Untrue. 17 Bit. 19 Enamel. 21 Ruminate. 24 Ibis. 25 Mainspring. 27 Teatime. 28 Inshore. 29 User-friendly. DOWN: 1 Thereto. 2 Astronomer. 3 Forelimb. 4 Creepy. 5 Ibex. 6 Hairier. 7 Orthopaedist. 10 Golden eagles. 13 Indisposed. 15 Air. 18 Turnpike. 20 Animals. 22 Alimony. 23 Career. 26 Bier.