Yesterday’s solution

– ACROSS: 1 Laughing gas, 5 Fifth, 7 Ascot, 9 Limeade, 11 Sol, 12 Wen, 13 Samurai, 16 Ennui, 17 Augur, 18 To one’s taste.

DOWN: 1 Life is sweet, 2 Ho-hum, 3 Nyala, 4 Setting free, 6 Falls in, 8 Chewing, 10 Emu, 14 Moire, 15 Roast.