Cryptic crossword

ACROSS 1.

Heart-breaking, shivers that are recorded on Richter scale (11)

8. Called for one in hotel as one quietly got older (5)

9. After fifty, resign perhaps? No − hangs on! (7)

10. Flushes the revolutionary lairs (7)

11. Cut it in surgery and make clean break (5)

12. Speaking a proverb (6)

14. Loves a bit of fuss and inconclusive repose (6)

18. Put it off for a while and bow to higher authority (5)

19. Get over it being concerned with book-jacket (7)

21. Trod its form in a way that would pull it out of shape (7) 23. Be unsuccessful: nothing in that for the morally lax (5) 24. It limits one to making rice, not stir it (11)

DOWN

1. They are sent abroad and left in change of sex (7)

2. Fit one with sails nonchalantly but unbendingly (7) 3. Layoff bets with privet (5)

4. If not, the French sun’s crooked (6)

5. Sort to have gone ahead and got the fire going (7)

6. One will understand the authority of a bishop (3)

7. No real jewels involved in stick-up job (5)

13. Was apprehensive of Venus, or might have made it (7) 15. Academician has no end of a fiddle with Italian dish (7) 16. Son is about to encourage one to be a sawbones (7) 17. It sounds even more magnificent but will reduce it to shreds (6)

18. Get out of the way of a wrinkle that’s useful (5)

20. About a cubic centimetre of oil mixed for the pain (5) 22. Schoolmaster in Wilde’s Irish keeping (3)