Cryptic crossword

ACROSS

7. Of the different sorts of muscles one might ail with (13)

8. Valiant to be a rebel, but do the twist (11)

12. Building debris from British Rail turning blue (6)

14. Forest officer who telephoned King Edward (6)

16. One minds about dental decay (6)

18. 18 Down will frustrate one’s plans (6)

19. One receiving the host, comic man nut turns to (11)

23. The way one says it can ruin caption on resetting it (13)

DOWN

1. The wharf is ripe for redevelopment (4)

2. Something that bites will help if it contains carbon (4)

3. Part of the sentence Santa gets on 7th December (6)

4. Knock one about with coating cook uses (6)

5. Mother Beeton kept something for flavouring (4)

6. In iron, an American safety device (4)

9. Trade stoppage when amber turns to green light (7)

10. Remove some of the load to make things brighter (7)

11. 15 finally aspirated an archaic abbreviation (4)

12. Sort of music suitable for a cradle-song? (4)

13. It isn’t true it’s the position golfer must play ball from (3)

15. From where Joan didn’t come full-circle (3)

17. An oblique look at one of five children in the street (6)

18. One in the wrong strip for an angel (6)

19. Remove middle of apple in picnic or entertainment (4)

20. A brother Scotsman starting to keen (4)

21. Those of the Apostles that make up play (4)

22. It gives some weight to Conservative confusion (4)