Cryptic crossword No 3,406

Across

1. Third otter eaten by mere potatoes (5)
2. 'Fire In U!' performance brings everyone together (7)
3. Belief leaning left and right (5)
4. How one could get a giraffe steak? (4,5)
5. 'Dich, Rik!' translated for silver-spooner (4,3)
6. Idol headlessly joins with cutting pieces (7)
7. A nugget of gold encourages good days (5)
8. Test trading one and all makes a mix (5)
9. Timeless particles - brainy stuff! (7)
10. 'Mort', Gran's novel, forces her hand (6-3)
11. Made especially, these acrostics, carefully laid, unite 'ere? (4,4)
12. Alternate ending, shot after hours (5)
13. Instruction to driver every second: 'Ta, here - oh, up! Gah!' (7)
14. Meal maid mixed missing middle-man's moral matter (7)
15. Farmboys herding fragment? (5)
16. Band (the setter's) is a bit fishy (8)

Down

1. One with a poem makes sparks fly! (5)
2. The first tracks inner thoughts on stage (6)
3. Very musical, like a weapon (5)
4. Escapes, and finishes retreating (7)
5. Loan Nic nutty, creamy dessert (7)
6. William's piece, a part-time worker, is French (7)
7. Supply partner after sin's core - it's getting hot! (2,6)
8. Found in French, 'fermé' comes later. (8)
9. Sushi from a boy's hills with Spooner? (4,5)
10. Spirits, or where they disappear to? (6)
11. Foolish, rebellious robots? (4,4)
12. An old flame, before the other lot, starts to get praise (5)
13. 'Logically, monks live here.' Discuss. (1,6)
14. Lured Ed, an alien - censored! (9)
15. Dial Tony - nuts! It's being centralised (8)
16. Butcher's five exchanged for gold jacket (5)