Cryptic crossword

ACROSS

1. Details of car trials up for it (11)

8. It’s on quite a different formula (8)

9. Round journey 20 is on in the provinces (4)

10. Animal, the finest to have a heart (5)

13. His Prince and Falstaff’s leader, for a term (4)

16. Doesn’t get the go-ahead from the corner (4)

17. Powder the earliest alchemists used (4)

18. Bit of sugar in pill umpire holds (4)

20. To him, work may be play (5)

24. Look after tour-leader at the finish (4)

25. Remarkably rapid time Coe started recording (8)

26. With pictures of turtles laid out (11)

DOWN

2. It’s an odd sort of lily (4)

3. Name of book could be honorific (5)

4. A hybrid such as St Anthony’s (5)

5. A chit composed of a single letter (5)

6. Only traipse around to show individual character (11)

7. Competence of prince, if coy about it (11)

11. Where combat takes place in the square, naturally (5)

12. Turn card face-up for Oliver (5)

14. It is forthwith out of the place in question (4)

15. Class in favour of headmaster (4)

19. Of the feet that will get a bike moving (5)

21. He is held by spiteful woman to be a two-timer (5)

22. It may be grand to be on the musical stage (5)

23. Loyal toast rarely upsets European leaders (4)