I know when i'm beaten. The last four please:
6ac -Blank panel perhaps criticize retro rock (6) ?abb??
10d - Legendary Gaelic poet detailed a musical alternative (5) ?ss??
17a - Top bits from Antiques Roadshow, the ne plus ultra, anonymous porcelain (5) ari??
25d - Rag legal graduate over absent twins from Pittsburg (5) b?att - this seems to be blatt but I can't find any confirmation.
Thanks.