1. I chop board for fossil shellfish (10 letters)
9. Earthís satellite (4)
10. Is in beware, plurally (3)
11. Liberate good building materials (10)
12. More than 9 but less than 11 (3)
13. Push oar in hard frost (4)
14. Babaís first name in a line (3)
16. Law of male succession rich in silicon and aluminium? (5)
17. Donkey in Assynt (3)
19. ëThe lowing herd wind slowly oíer the ---í (Grayís Elegy) (3)
20. Tilt a toy over for a complete eclipse (8)
23. A small company (2)
24. Elevated railway in USA (2)
25. Sounds like circumspectly separate (10)

Clues down

1. A brief duct split in two (10)
2. ëWhen a soft and purple mist like a vaporous --------í (P B Shelley) (8)
3. Sounds like a small company in the glen (3)
4. Shot round a plant (5)
5. Tern cities around a small space (10)
6. Collect 7 down in a pot... (3)
7. ... or even in 6 down (3)
8. Badly spice contemptibly (10)
14. In fall yet a friend (4)
15. Do not sit on an untruth (3)
18. Thus (2)
21. Part of the Arctic Circle (3)
22. To take in a wee dram (3)
24. as 24 across (2)