1: Kind of blue hereafter, at heart; this might tell what's to come? (3,4)
2: Believer in esoteric powers is joining quasi-religious group in October (9)
3: Throw out faulty nib (3)
4: Twilight: time for affair (5)
5: Slippery deck spots are on either side (9)
6: Quite put out, doctor axes red tape (11)
8: First get a French weapon. (3)
11: Trespass upon a moniker exploited by commercials (4,7)
13: Infection leads from partly uncooked steak (3)
15: We tangled with this old kitchen cloth (4,5)
17: Fresh ardor mellows outbursts on the highway (4,5)
18: Leaders of Orioles and Rangers stick in the dugout? (3)
20: Live within the lustre of a spirited place (7)
22: Demonstrated the way in which to keep poles apart (5)
24: Makes empty noises behind listener. (5)
26: Turn on an ex-Portuguese colony (3)
27: Frost to cover the cake (3)