Cryptic crossword

ACROSS

1. He’s related how the nucleus abandoned us (5)

4. Star is able to get work in music (7)

8. It makes one taller and is worth hen groom gave for it (6,7) 10. Earth is matter rarely revealed (5)

11. Light that may be got from the palm (4)

12. The sediment that will sit around top of the Loire (4) 16. Sound is one that can be variable (5)

17. A tumour can be our lot, as man makes it (13)

19. Gave in, as did Ely, about the East (7)

20. It is celebrated, on returning to Edward (5)

DOWN

1. It’s not showing the well-bred behaviour of the male (13) 2. Sound like a dove, not quite a waterfowl (3)

3. All one owns is set out with the tea (6)

4. The company where I’m standing will be consistent (6) 5. It’s not unusual for a Roman to be about fifty (6)

6. The advertising of a leg-up (9)

7. Legerdemain and flight he so wants to organise (7,2,4) 9. Self-possession with which composer does U-turn (9) 13. Develop into fun with the aged (6)

14. Is given the invoice when not well, and in bed (6)

15. It is taught to have fewer things to do (6)

18. It is no longer fashionable to be on loan (3)