Cryptic crossword

ACROSS

4. Make a speech on present-day clothing (7)

8. Complete section of the testament I recited (6)

9. Don’t allow a person to mix soil with tea! (7)

10. Social distinction by the French to cause annoyance (6)

11. A loophole I permitted, by the sound of it (6)

12. Ring the visiting diplomats – something has been left out (8)

18. A catalogue of brainwaves for one with utopian aspirations (8)

20. Showing technique for putting a road diversion in front of it (6)

21. Trappings for splendid little railway (6)

22. Communist leader is a flaming capitalist! (3-4)

23. Introduce into the office as a clerk (6)

24. Grizzly description of a falling market (7)

DOWN

1. Castigation about substantiated evidence (7)

2. Substitute not takin’ the chair (5-2)

3. Bores a doctor with maladies (6)

5. What chemists do as far as physics are concerned (8)

6. Will this kind of map produce a relaxation of tension? (6)

7. Artist’s model would be hard to miss (6)

13. Nominally they provide capital beginnings (8)

14. The ore will produce refreshing liquid (7)

15. Checking what hotel guests are doing (7)

16. From the head he received stick! (6)

17. Board of Trade gets over her trouble (6)

19. From which one could take a bird’s eye view (6)