DOUBLE CROSSWORD CRYPTIC

Across: - 1 Academia. 6 Twill. 10 Eternal. 11 Pontiff. 12 Irons. 13 Microchip. 14 Encrypt. 16 Hormone. 17 Honkers. 19 Riposte. 21 Pistachio. 23 Negev. 25 Idolise. 26 In error. 27 Trace. 28 Star Trek.

Down: - 2 Credo. 3 Dynasty. 4 Malemutes. 5 Aspic. 6 Ten four. 7 Irish moss. 8 Life preservers. 9 Beside the point. 15 Conestoga. 16 Harmonica. 18 Examine. 20 Pungent. 22 Heels. 24 Gorse.