1: Part of the USA obscured by mist and dew? (7)
4: Where junior diplomats are sent to spout off (7)
8: Unfit American Indian getting pale about note (9)
10: What this puzzle is (3)
11: Mothers copper, Mark, is male (9)
13: Vet theatre opening 8-down (3)
14: Savings division of e-banking gets enormous returns (4,3)
15: A former Middle-Eastern leader who is reasonable in discussion (7)
16: Congressman Grant's adversary gobbles steak bone, getting stuffed (7)
18: Sarah has friends from France on a Greek island (7)
20: Freshen the atmosphere (3)
21: Great Dane running about outside caf (3-6)
23: In no state to contain a pregnant virgin? (3)
24: Telltale churning up dirt on CIA (9)
26: Top dog in hiding from distemper organisms (7)
27: Amplification device for 'Murder, a Novel' (7)