Cryptic crossword No 3,318

Across

1. She kills foreign invaders, securing head of traditional, western country (10)
2. Olympic event where things get worse? (8)
3. Release fire (3,2)
4. Twisted form of exercise between warring sides (5)
5. Country exporting animal skin to another (7)
6. Where the astronomer experiences ups and downs? (3,6)
7. Rod is one used endlessly, catching trout originally with skill (7)
8. See 24d
9. Make crazy by removing door? (7)
10. Spaniard, possibly from capital, returned after turning love into marriage, finally (7)
11. Welsh god found in Chinese shrub (8)
12. Article found in search leads to torment (5)
13. Minerals that attract giants meet in error (10)
14. Not usually dressed, even to begin with (4)
15. Presential attire is a winner at the table? (5,4)
16. Promote perfume without money (4)

Down

1. One tends to rewrite addenda (8)
2. City party's central characters swap insects, initially? (6)
3. Explosive ingredient found in newer tinder from the east (5)
4. Northerner's heading for interesting night in Paris (5)
5. Interrupt making one old key (6)
6. Ghettoes evolving with no good drive? (3,4)
7. Bus and rig crash on California coastline (3,3)
8. Some guts to macho-man's fight? (7)
9. Blanket answer to loud German a lot of help (6)
10. Depressed revolutionary discovered eating hot dog (9)
11. Where one might find climbers with troubles going into shelter (8)
12. Musical actor supported by topless poet (8)
13. Norris regularly lapping while amateur beginning to learn road circuits (8)
14. Reason pet twisted tongue? (9)
15. After games, East European took notes about clubs with songstress (6,5)
16. Approaches twisted old city from the south (3-3)