Across:
   3. Celebrity's private return... no idea of when they'll arrive or head to residence (3)
   8. Avenge bombed city in neutral territory (6)
   9. Country reinvented 28 rain dance (8)
  10. Steps outside hotel in dress (7)
  11,15dn. Musician is uniquely hip, having cheek to go with two girls (6 5)
  12. A crime network accepting first of elections by an independent cell (6)
  14. GGs with primary bits of every lad's instrumentation not included? (8)
  16. see 25
  18. see 7 down
  21. Breathe in a polite opening during sitar playing, and save ending (8)
  23. Discriminating sitar playing using classical introduction (6)
  25,16. Musician Huey wasted ten cents not using harmonica in 'News' leads! (6 7)
  27. Dearer and closer to group, or ultimately much colder? (7)
  29. Obscure manic coteries (8)
  30. Love variety in fruit (6)
  31. Can sitar essentially marry with popular? (3)
Down:
   1,13,26. Work of 16 and 18 tastes sweet, mysteriously taking me in (4 5 4)
   2,19. Musician playing with her organ is ogre (6 8)
   3. Shiva ran a sitar course whence 18 hailed (8)
   4. The way to get beyond your years? (7)
   5. Push quiet execution device to one side (6)
   6. Result of crashing if in tour (8)
   7,18ac. Shiva ran ark building and he taught 2 19 sitar playing (4 7)
  13. see 1
  15. see 11 across
  17. You finish by accepting my resignation, being all over the place (8)
  19. see 2
  20. Honour creeps off before time (7)
  22. It may be a cuckoo house, yes, and 7 went mad in there! (6)
  24. 150 inches initially highest peak (6)
  26. see 1
  28. Maybe a James Scott piece (24 for instance), and a piece by 7 18 perhaps (4)