Previous solution

Across: 7. Deteriorating 8. Majestic 9. Idea 10. United 12. Bleary 14. Ill

15. Emblem 17. Emetic 19. Heir 21. Narrowed 23. Necessary evil.

Down: 1. Per annum 2. Defect 3. List 4. Crucible 5. Attire 6. Once 11. Diminish 13. Reined in 16. Larder 18. Eroded 20. Even 22. Rare.