Cryptic crossword

ACROSS

7. Dancing in the air? (6,2,5) 8. Did they get promotion after skating? (8) 9. Is on charges (4) 10. A call for a bite (6) 12. Carry too far because of celebration (6) 14. Dances to go higher (6) 16. Soundly beat for writing rubbish about hothead (6) 18. Top performer brings deserters back (4) 20. Photo of a quick bit of markmanship? (8) 22. Be strongly inclined to be really intelligent (4,1,4,4)

DOWN

1. The make-up of 444 on hands and knees (3,5) 2. Urging birds to produce? (6) 3. A bit of a nasty eyesore (4) 4. Branch not hitting the target? (8) 5. Mark time and refuse to work (6) 6. Begin, though having nothing to write (4) 11. Put Communist pointer to the East on the drawingboard again? (8) 13. Ignore the deduction from the bill (8) 15. Student has no head for becoming the breadwinner (6) 17. Take up the summary again? (6) 19. Rip a sign of sadness (4) 21. All right in the morning, though in a frenzy (4)