Cryptic crossword

ACROSS 1. Get past turn in tin with this sort of lathe (7)

4. Carbon appears inside out when it’s engraved (7) 8. Superior people get back on bus: that’s non-u (4)

9. Good management in Rhode Island (10)

11. Fools who do sit around after one has begun (6) 12. Strategic Defence Initiative Tsar was right about (4,4) 14. Rich store of potential for a treble perhaps (9)

15. What breadmaker needs to finish meal in teatime (5) 17. Being in Sudan, ceased to show ballet (5)

18. Photo improved, to do her cute turn (9)

19. A hundred bucking broncos respond to the pipes (4-4) 21. Bird Peter took out at end of April (6)

23. A public showing of it in box he fashioned with one (10) 24. Some water in Scotland may go up in flames (4)

25. Fretted against the end, ripe for development (7) 26. Go before creep can turn, being half-dead (7) DOWN 1. C-in-C Devon provided if satisfied as to truth (9)

2. State control may punish price, blow though it may be (6,9) 3. Authoritative standard given without Marines being present (4) 4. Deep-rooted tree has vet in a muddle about it (10)

5. Scrumpy to turn up in a Devonshire dictionary (5)

6. Give an encore as vocalist and change to humbler tone (4,7,4) 7. Put clothing on that will draw fowl (5)

10. Don’t work at it, and all ten pins will go down (6)

13. Ascribed to Bart, it may take duet form (10)

15. Played a wind instrument with grooves cut in it (6)

16. Fragrance coming from creel done in this way (9)

19. Shout hurray that may re-echo if nothing is lost (5) 20. Passenger compartment can hold bird if it’s halved (5) 22. Wooden ring through which it’s punishing to be put (4)