7 - the "rock band" is of the mineral variety....
I still don't have this one, last one to get.
Is it melodise, can't see any reason, or nay way to get a mineral rock band in there.
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Writer is brought into rock band to make music (8)
Why is France part of the theme group? Apart from that, and 'fist' being a rather dubious synonym for 'hit'; a nice puzzle.