Cryptic crossword

ACROSS

7. Come to the end of cash flow (3,3,2,5) 8. Caledonian at liberty to get off like this (4-4) 9. A scheme the board fails to finish (4) 10. Springs in which wine may be found (6) 12. One stupid enough to provide a piece of secret information (6) 14. In a rush the French made unsteady progress (6) 16. Merely a direction to hint at (6) 18. A slight incoherence in speech (4) 20. Don’t be so concerned at being devoid of intellect (8) 22. One who agrees to build underwater craft? (13)

DOWN

1. Pay money for mechanical advantage (8)

2. Entrance made by the patrol (6)

3. Where you’ll find convicts cause a commotion (4)

4. The crimes of shady dealers (8)

5. Two join up (6)

6. Bright star for example appearing in Virginia (4)

11. It sinks to the bottom when fellows are caught in ebb-tides (8)

13. This may well be eyecatching (8)

15. Cyril’s adapted the words of the song (6)

17. Ill-will shown by inordinate claim before the end of the case (6)

19. Praise twofold backing (4)

21. A girl turning up in Qatar once (4)