Cryptic crossword

ACROSS

7. No causer reversed of tears charge (5) for 8. Blue rot can spell bother (7) 9. Eminent, but apparently unskilled (7) 10. He appears to mark his selection wrong (5) 12. Compels to study 4s (10) 15. He has lots to offer (10) 18. 4 topped hair (5) 19. Ruth had general move round (7) 21. Solace from cot (7) 22. Consumed in great enthusiasm (5)

DOWN

1. 2. Cancel shopkeeper Little pussy out what in did? pool the (10) (5) 3. Rebuff by sending small cakes back (4) 4. Emphasize tension (6) 5. Talk of the opposite (8) 6. To a sailor it’s a black mark not to indulge (7) 11. Nature’s art where food is served (10) 13. Ring embassy for what was left out (8) 14. Shrieks ‘Science needs lots of paper!’ (7) 16. Times when things appear differently (6) 17. In which more than one become one (5) 20. Paradise – an oriental vice spot? (4)