Cryptic crossword

ACROSS

1. Very silly of bard maybe to take us back in (6)

4. Support for the PU (4-2)

9. In conversation, link may be made with tag (7)

10. The main sort of map (5)

11. Sound rule to come down from the clouds (4)

12. Make shift for oneself loudly and finish it (4)

13. An outfit for Christopher shortly will appear (3)

15. A cad is the last thing one will find in the boot (4)

16. For a tailor it’s a certainty (4)

19. Get solid arrangement for the hair (3)

21. Misfortunes of the Linnaean Society began with the Italian (4)

22. Professional charge is about right if it’s gratis (4)

24. Cross that is put around a deserter (5)

25. Precious metal in the mass found as Taurus takes one on (7)

26. Imply non-existence of age ten can turn to (6)

27. Pew-opener at the side of the road on the right (6)

DOWN

1. Somehow or other it is following a mode (5,1,7)

2. Flesh is thus concerned only with number one (7)

3. There’s a bird making part of the fence (4)

5. It wasn’t meant to happen, but I’d got in a circumflex (8)

6. Trick of doing a petty contrivance (5)

7. Breakfast diet Peter and June set out (5,8)

8. Say one will rage about the environment initially (5)

14. The deposit of ten cents is to be sent round (8)

17. Leaving each other a line on the scalp (7)

18. The world of the Theatre (5)

20. Nasal tone produced by insect getting up round window-top (5)

23. Part song, all mirth and gaiety (4)