Cryptic crossword No 214

Across

1. Alter ego and rogue occasionally seen at 10ac with 1d (6)
2. Doubting a Gainsborough? (6)
3. Sounds like 26ac in the valley (4)
4. Met art done surprisingly here? (4,6)
5. Frankenthaler, leader in abstraction, made a saint (6)
6. Car you are situated in, on the West side of South American country (8)
7. Strikes back against churning tides, most idiotic. (9)
8. Seen at 10ac, he uses bits of hardwood, undercoat, matt and emulsion (4)
9. Seen at 10ac, he’s got one foot in Asia and one in Europe (4)
10. Insignificant, Hamlet’s narrow mentality (5,4)
11. Feeling in your gut, take some of Mrs Miggins’ tincture (8)
12. American embroiled in gossip, found in the woods (6)
13. Controversial Yemeni art, top of class, seen at 10ac (6,4)
14. Grayson Perry requires this at work and occasionally when he goes out (4)
15. She took a lot of photos for grinder (6)
16. Execute again at 10ac every few years (6)

Down

1. Young woman loses right to accompany boy to 10ac with 1ac (7)
2. A measure of central figures in 90s - McQueen, Landy, Lucas, Whiteread (5)
3. Participate in Congress, provide good detail clumsily (3,4)
4. Murmur response for us (6)
5. Holiday season, cryptically, GU? (3,6)
6. Description of paint on canvas, surreal, lacking tangible feature of portrait (7)
7. Transformed a pointless Matisse in The Met, it’s contemporary (2,3,4,4)
8. A bit patchy, like 1d and Sullivan’s Cornish work? (9)
9. Evidence of artistic temperament perhaps - militant, rumbustious in part (7)
10. Permit insects no scalp exposure initially (7)
11. Tiring, when she signs her work at 10ac (7)
12. Catalyst for wild behaviour, with absent father, by Piper (6)
13. African-American woman in charge of ward perhaps (5)