1.  2.  3. g 4.  5.  6.  7.   g
  g   g   g   g   g   g   g g
8.               g
  g   g   g   g   g   g   g 9.
10.         g 11.      
  g   g g g   g g g   g g g  
12.    13.    14. g 15.  16.   
  g   g   g   g   g   g   g  
17.      g 18.         
  g g g   g g g   g g g   g  
19.  20.     g 21.   22.     
  g   g   g 23. g   g   g   g  
g 24.              
g g   g   g   g   g   g   g  
g 25.         g 26.     

ACROSS

1. Thanks!? Jeer for prohibition! (5)

4. Cunning, if I trace arrangement (8)

8. Socialist principle? "Imagine" Australia's redistribution without US involvement! (14)

10. Concerning inflexible limit (8)

11. Give in at limitation (6)

12. A martyr, Ann? Is everyone who yields to rule absolutely? (9)

15. eg spud piper perhaps? (5)

17. Band that rises to the top (5)

18. His mascot, recast as pain-lover (9)

19. A unit (6)

21. Go in more wildly with warcry (8)

24. Socialist principle? Unfortunately, the power stains. (5,9)

25. Introvert about to put on a capital 16-Down (8)

26. More hurt by strange errors ... one less right now (5)

DOWN

1. The studious type their gorey article: Diana in alternate threesomes (12)

2. Brother rides donkey to Lake Restaurant (9)

3. Rise, O Battered Willow! (5)

4. Socialist principle? Perhaps Roman arch is meant to provide. (9)

5. Labour in lavatory cut short (4)

6. Amazing fizzy orange on cut stick (9)

7. Reportedly tossed some 14-Downs' rejection of 8-Across (5)

9. Bizarre error topmost in nominally socialist agent (12)

13. Quantified strange dream tune (9)

14. Each more inflexible oriental (9)

16. Pommy brother - it is he, right? (9)

20. Roughly, I top a bit of decking (5)

22. Bogey men amongst progressives? (5)

23. Cut wild beast (4)