Cryptic crossword No 3,312

Across

1. Start a fire, I get in bewildered (6)
2. Something wrong with the leader of this Indian vehicle, add more Potassium for a cooked dish (8)
3. Garden building that’s cheaper than a hotel (10)
4. Vigorous energy in a gust of wind (5)
5. Should be like Ghana inside out (5)
6. An Italian eight inside beetroot tortellini (4)
7. Positive feedback for made up parking lift (6)
8. A city I’d rearrange with sourness (7)
9. Confusingly emails a sense of uneasiness (7)
10. I start and end from scratch (4)
11. A Scotsmans vision, worked his way to the top (8)
12. Good game in African river leads to petty complaint (6)
13. These gift-bearers bring a combination of good smells (6)
14. These chimps often evolve a cutthroat approach (10)
15. Hotting up later this evening (7)
16. Great Al is roaming free (2,5)

Down

1. Branch of mathematics for lay hypothesis (3,6)
2. Style that makes words lean for effect (7)
3. A place to speak (7)
4. A comfortable place at the start to go rest at the very end, without that pesky definite article! (5)
5. Oriental cruise arrives in New York City, for example (4,5)
6. Everything’s fine for a dishy fish (5,4)
7. Abandoned settlement confused by two thongs (5,4)
8. A beautiful singing voice, sometimes confused for rhetorics (9)
9. Shrewd, in the know perhaps (7)
10. I’m in good will, but not by my facial expression (7)
11. Medical man pursues a confused PhD (5)
12. Ethiopian Emperor in US gene mix-up, without energy (5)
13. Person who sets the speed inside a space rocket (5)