Cryptic crossword
ACROSS
1. Dirt up, foul back (6) 4. Being dressed, returns worn cover to bed (6) 9. Place teacher – to keep controlling eye on 21 across? (7,6) 10. Unmated, and wild about it! (7) 11. Deliver the harvest (5) 12. Peg by pastime (5) 14. Proper way to help (5) 18. Puller of height? (5) 19. Gambler is a pinhead thruster (7) 21. Currently charged to educate – running on preconceived lines (8,5) 22. Take the plunge, and cause a sensation (6) 23. Showing spots of meanness? (6)
DOWN
1. Stiff actor? Sop up and add the total (6) 2. Drawing a circle. Engine driver needing no 9 across, outmoded by 21 across (8,5) 3. I’d got one honour, so to speak (5) 5. The headshrinker has nasty latent complex – but not under canvas! (7) 6. Making sheep fritters to breach the enemy? (9,4) 7. Unhorse? What a laugh! (6) 8. A sonnet to a Pole (5) 13. Scolds wild bear setup (7) 15. Germs around Tynehead produces horsepower (6) 16. Health resort in the country (5) 17. Like a trademark, it shows spirit (6) 20. Unite? Unravel it (5)