Cryptic crossword No 3,646

Across

1. It's nothing new, yet holds some art that's new (3,4,3,5)
2. Specific terms in script taking turn (7)
3. Spread throughout Othello, versus Romeo and Juliet, say? (6)
4. With alternative directions, tempts to leave discounts (5,3)
5. Finally, sun follows low tide's leader? (4)
6. Timeless measures of life's vessels (5)
7. One who summons staff snatching silver here in France (8)
8. Wringing cheesecloth to sculpt empty place to conceal your hand? (5,2,3,5)
9. Crazy lunar fools getting down to hands and knees (2,3,5)
10. I'm storing uranium after specialist mesh turns into radioactive metal (10)
11. Recluse discovered thermite (6)
12. Ever so regularly seen within gaggle's wings? (5)
13. Yak on about return of oddly alien entity from the dreaming spires? (7)
14. Celebrity that the Earth revolves around? (4)

Down

1. Crooked Don, help my defense hub! (5,4)
2. I would first time out in test that is written in full (2,3)
3. Optimus Prime, perhaps, is power-scaling machine? (11)
4. One shy, nearly, or thereabouts (3)
5. Gospel's half-evil seraphim (7)
6. Last to proffer (4,3)
7. Within moot points, a gem (9)
8. Monstrous sort of French villa without the French (5)
9. Obtains spot over terrible lookout (11,4)
10. One doing the saving? Right, yep - laid bare, Sir, I traded for stick (7)
11. The short story getting picked up by listeners sells primarily in physical form (11)
12. Gets familiar with surroundings of East and South (7)
13. Source of Icarus' downfall is his relation to Daedalus, it's said (3)