Cryptic crossword

ACROSS 1. They are robbers, in the main (7)

6. Sam is America’s pawnbroker (5)

9. There’s a win to be achieved for the second time (5)

10. It is inherent in one to be a certainty (7)

11. Cook or make some Indian dish (5)

12. Get prepared for a tail (5)

13. Ray naturally bans emu from it (7)

15. Wait for such a time as one whale takes to turn round (6) 16. To be in it is wrong (5)

18. Making up required measure in keg maybe (5)

20. Some liquid mineral is incomplete (5)

21. How the peacekeepers hid from an Indian (5)

22. Sort of vision of the underground way (6)

25. After five, 23 might go to him for wine (7)

26. A rate of exchange for a lariat (5)

27. Give me a go at the conclusion (5)

28. Crest it made to divide into three (7)

29. May be due for credit first but is unprepared (5)

30. Be about to change hat and go for a swim (5)

31. She’s the senior who’s cheated about Japanese money (7) DOWN 1. MPs, then in US, worked out the penalties (11)

2. The part of one’s eye one might have tear in (6)

3. No, not the Manx TT but a junior event (5-6,4)

4. Land that’s flooded with trash alms are given to (4,5) 5. Intriguing council put up in hotel, a backstreet one (5) 6. X may be a factor whose importance is not foreseen (7,8) 7. State what a liar NCO can be (8)

8. Giving up drink, achieved highest note (1-2)

14. Of late, the tree develops a material like skin (11)

17. Eggs can be leased out or renewed (9)

19. It’s not nice to be upset about North, who didn’t do it (8) 23. Resident doctor may confine one to a prescribed area (6) 24. University is in a trough, for what it’s worth (5)

27. Little brother going up the mound (3)