Crossword Genius

Cool bash for band of groupies (3,4)

Ross

I believe the answer is:

fan club

I'm a little stuck... Click here to teach me more about this clue!

'groupies' is the definition.
(I've seen this before)

'cool bash for band' is the wordplay.
I cannot quite understand how this works, but
'cool' could be 'fan' (fan can mean to cool down) and 'fan' is found within the answer.
The remaining letters 'club' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'of' is the link.

Can you help me to learn more?

(Other definitions for fan club that I've seen before include "Group of groupies?" , "Admiring band" , "Organised group of admirers, as of pop stars" , "Keep place of entertainment cool" , "Association of ardent followers" .)

I've seen this clue in The Telegraph.
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