4: Arabs lost sneaky bird (9)
9: Odysseus' first requirement - to catch you like Polyphemus? (3-4)
10: One asking for quiet guide (7)
11: Trunk contains piece of old knotted rope (5)
12: First aid for sprains is common in the arctic. (3, 4)
13: Artist's entrance (7)
16: Man, and French Impressionist (5)
17: Ikhnaton's successor or teacher (5)
19: Author of stories about moles could be clearer (2,5)
21: Exhibition is all-inclusive and superficial (7)
22: Quick thrust giving a little nudge to sled (5)
24: Omit sea-change fragment (7)
25: Strange guy, Nero jr. (7)
26: In hindsight, schedule recorded for a blast (9)
27: Character from Greece or the borders of Transylvania (5)