Cryptical crossword

ACROSS

1. 3. Even are Strung nowadays! well-done up (8) (4) steaks 8. Forbid a rigged vote (4) 9. American prison with emphasis on harmony? (4-4) 11. Wait to start a game of ping-pong? (5,2,5) 13. Native found in bed (6) 14. Amuse touchingly (6) 17. They often invite you to their houses (6,6) 20. A diet put out for fitness (8) 21. Song needs a tuneful backing (4) 22. Indeed not all went (8) 23. The advantage being sharp gives one? (4)

DOWN

1. 2. The Sends taking do proceeds (8) last exams back thing (7) the should those 4. They awkwardly raise (6) this so 5. Impressions of some artists (10) 6. Not only soldiers may be bored by it (5) 7. Appreciates accommodation (4) 10. He does well with his money (10) 12. Picture which has a main theme (8) 15. Relatively gentle colour? (7) 16. Has it a piercing eye? Just the opposite (6) 18. Beg to put off retirement (3,2) 19. Music circle (4)