Cryptic Crossword

ACROSS

1. Used for making up a strange pie (11) 9. Streams of invective one gets in some professions (7) 10. Illicit photograph? (5) 11. Man-made product found in many London stores (5) 12. A red tongue (7) 13. Reply some Americans were hoping for (6) 15. Pat may speak it or wear it (6) 18. He makes his mark at times (7) 20. The smallest type of slate (5) 22. Mince pies having a brown colour (5) 23. A painstaking preparation? (7) 24. Bert at speed becomes splashed with mud (11)

DOWN

2. In Peru rallies are held in the country (5) 3. Term in music, and type of bet (7) 4. Possibly run and see to make certain (6) 5. Girls lose their heads the fools! (5) 6. Driving a point home? (7) 7. This order won’t require attention (5,2,4) 8. Silent dance arranged in secret (11) 14. A high point of religious architecture (7) 16. Be as bad as ever about a mistake (7) 17. It may be played when not in form (6) 19. Seagoing vagabond (5) 21. Possibly eager to correspond (5)