Cryptic crossword

ACROSS

1. Poster, art form that may be rendered flat out (9)

5. Such a hand may be expert with the flatfish (3)

7. Some film to look at lecherously if run backwards (4) 8. Cam, with thing adapted that goes with it (8)

10. At home, was inclined to be deliberate (8)

11. Move slowly on it when nervous (4)

13. Deny Academician was thus to have been spinning tales (6) 15. Second sign seen in extremes of merriment (6)

18. Sat back at the weekend, having completed chore (4) 19. South takes in its opposite in fighting to authorise it (8) 22. Gives an autograph back? (8)

23. Sound of merry laughter may have a ring to it (4)

24. One takes one on, one owns (3)

25. One fewer in a suit for the unfeeling? (9)

DOWN

1. Showing violation of faith, defy rip to change (7)

2. Six deliveries at end of Test were in public (5)

3. An outer part to what vessel leaves will rouse one (6) 4. Every single one will impart information topless (4) 5. Wind comes stern-first: if misled, it will peter out (7) 6. It may give one a call for a long black bead (5) 9. No upturn to collection at the start (5) 12. Something may be overhead for an entrancing person (5) 14. Is living with a variety of desires (7) 16. Gets involved with fish in a backstreet (7) 17. It has taking ways, in which it is in secret (6) 18. It is quite ethical to keep one’s dentition hidden (5) 20. Girl whose anger embraces men who go without a leader (5) 21. The chief may get one’s back up (4)