Crossword Genius

Graduate musician with role reversal, so upset about wind (8,2,4)

Ross

I believe the answer is:

bachelor of arts

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

'musician with role reversal so upset about wind' is the wordplay.
I cannot really see how this works, but
'musician' could be 'bach' (composer Johannes Sebastian Bach) and 'bach' is found within the answer.
an anagram of 'role' is 'elor' which is within the answer.
'about' could be 'of' and 'of' is present in the answer.
The remaining letters 'arts' 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).

(Other definitions for bachelor of arts that I've seen before include "BA in full" , "degree" , "Graduate" .)

I've seen this clue in The Guardian.
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