Cryptic crossword No 2,812

Across

1. Nearly roll over at school (5)
2. The greatest singer on the planet? (7)
3. Captivating, largely atypical seventies song is considered primarily a masterpiece (7)
4. Chart-topper on drugs after anaesthetic (6,3)
5. A number one single (5)
6. Rarely stop among 22 across? (3)
7. EE infested with rodents, leaving behind one music player (5)
8. Empty shop is housing redback, funnel-webs and black widows (7)
9. Raw apple cooked with a little bit of leek as an alternative to paint? (9)
10. Mime 'A_CDEFGHIJKLMNOPQR________'? (5)
11. Stormy night in eastern half of Stirling features this (9)
12. The Corrs hit: a tune played by them? (9)
13. Middle Eastern place around western Abu Dhabi's outskirts? (5)
14. Monarch taking part in grotesque entertainment (5)
15. Scientist has ‘illegal’ detailed model picturing Earth’s orbit? (7)

Down

1. Plant genus loves to take in cold liquid (6)
2. Sprinter to run really fast (4)
3. Good bridge player leads diamonds (4)
4. I’d like banks to do nothing (4)
5. Oh my word, what a 70’s chart-topper! (5,3)
6. Noisy hit from group and its lead (5)
7. You must order quite badly (8,2)
8. Last day on the borders of Kansas for many years (5)
9. Grease? Clean it with this material (8)
10. Guitarist with rock band once used to make money? (4,4)
11. Shoots goody two-shoes on board ship (6)
12. Mathematician I clued poorly (6)
13. Put on something that’s not quite ‘_____ The Champions’? (4)
14. A below average soldier (4)
15. Nervous before world gardening day finishes (4)
16. Mollusc suit? Nightmare! (5,5)
17. Racial abuse in the capital of Columbia (6)
18. A brilliant seventies operatic lied starts subtle, regularly seen as perfect (8)