Cryptic crossword No 99

Across

1. Former warzone invaded, on return remain sober (6)
2. In tabloid, sex coarse in report sent back - it needs a twist to get in (8)
3. Make elaborate use of finger in drawing sound conclusion (8)
4. Trapping of elite secured by term in Eton (6)
5. Captivated by dressing up for making bodily connection (8)
6. Quote about large beast turning extravagant (6)
7. I took off after signal to end lesson, with central themes at start exaggerated here and there (11)
8. Chickens and bits of onion? (6)
9. Describing powerful weapon - slogan in campaign to ban aquariums? (8)
10. A good card nearly captures ace - one of pair in hearts (6)
11. Wind, swirling, set in ahead of time (8)
12. Beginnings of attack on Orange order? Topic to steer clear of (2-2,4)
13. Tolerance for Spooner's little sexual encounter in Glasgow? (6)

Down

1. Officer, once on horseback, is free after short time (7)
2. Easy delivery? Hairy location! (8)
3. This is nasty: bugs are after mother (6)
4. Discomfort as love god does headstand with bit sticking out (8)
5. A kick in my behind? Ouch! First to be flung out (6)
6. Way of doing things on French bed exposed at night (7)
7. Device that signalled end of film? (7,6)
8. First exam question trapped befuddled Mary - soft target! (4,4)
9. US rock group in city, with drug confiscated, are more distant from mainstream (8)
10. Strip motor to core components (7)
11. Extraordinary lunar cycle ends cloudy (7)
12. Agitated ape in zoo, picking out no fleas perhaps (6)
13. Story in which American navy ship comes in for a scrap (6)