Cryptic crossword No 3,368

Across

1. Fat coated with processed sugars... this might take you to your grave! (11)
2. Bronze Age Greek residence, most lavish (7)
3. Come embrace radical leaders, friend! (7)
4. Finally back in first not third gear (3)
5. Replacement for [*]'s 12 meant coffin seen, cryptically (3,4 11) (3,4,11)
6. Finds it out, since odd bits released nonsensical (7)
7. Frightening sound as core kabooms! (3)
8. Coated eastern man turned model head of department (9)
9. Dangerous sort of ray gun, a military model army launches (5)
10. Rapid explosion at [*] tore one rude openings! (7)
11. See 19ac
12. Bernard a tennis player, but not a power like at [*] (5)
13. 20th century artist's inverted abstracts in red, ominously framed (9)
14. 24 of the burnt? (3)
15. Country of [*], and country Iran upset, followed by Spain (7)
16. You're Ali's match boxing? Dose of this might be needed! (7)
17. Quietly rest in peace... city finally abandoned (tardily initially) (7)

Down

1. Lie with crazy nut and book woman (7)
2. From legendary city in real country (5)
3. Bit of smile and bit of smirk in ironic twist (7)
4. Wood overwhelmingly restricted (3)
5. In need of careful handling or aid, cryptically? (11)
6. Lincoln, a long-ago formula one champion, losing heart (7)
7. In cakes, it neatly garnishes tops (5)
8. Diplomat is serving essentially as 10 (7)
9. He made big money with oil as foundation, given uneasy feel about [*]'s end and hesitation expressed (11)
10. Cry of pain after minor cut (3)
11. Hollow proposal rejected by factory worker? (3)
12. What sort of power was [*]'s? Clue: Iran one out desperately to get it! (7)
13. Badly gaslit about energy source being the most flexible and dynamic (7)
14. Popular name, large one in engraved gems (7)
15. Heads up: this NEEDS a lot of ongoing cycling!! (7)
16. Hindu ritual, many a saying involved (5)
17. Not even politician entering purchase (5)
18. Abrupt reduction of current and power after start of disruption (3)