1: Cheyenne Mountain installation produces radon mixture (5)

4: And not in town, ordinarily (3)

6: Some slippers and also shoes (7)

7: Author of Breathe Out, Lay Out, Going Out? (4,5)

9: Hero-worshipper dancing reel and jig (7)

11: Essential part of Cayce's power! (3)

12: Scotsman to notice fundamental singular metaphysical entity (5)

1: Greek characters suggest dawn (3)

2: An Indian princess fled east repeatedly (5)

3: Prig had ma conceal midriff (9)

4: Pronounced ability to smell negative votes (3)

5: Game for drunkard (5)

7: A quaintly pleasing accent (5)

8: Burdened young man with couple of encumbrances (5)

9: Lick up pal (3)

10: Clear initial rubbish in drain (3)