Last few are annoying me. 20dn - Worthless term of abuse passed over husband and wife abroad (6) - I assume this is "wahine" but don't see the term of abuse.
25ac - Photocopy is provided by rag (4) STA? but not sure about the "T"
3dn - Music that's mostly very powerful associated with India (6) - RAGI?I but I can find nothing suitable to fill the gap.
Forgot so say...there was some debate earlier as to whether 20 D should be wahine or vahine. Both mean the same -and I think 'vahine' came out on top because it includes 'vain', which links to 'worthless'.