Swing, trad, bebop, etc etc (3,3,4,4)
I believe the answer is:
and all that jazz
'bebop etc etc' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'swing trad' is the wordplay.
I cannot really understand how this works, but
'trad' could be 'jazz' (I've seen this before) and 'jazz' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for and all that jazz that I've seen before include "With the whole of 8's [LOUIS ARMSTRONG] repertoire" , "et cetera?" , "etc ..." .)