Instrument does maybe turn around (4)
I believe the answer is:
reed
'instrument' is the definition.
(reed is a kind of instrument)
'maybe turn around' is the wordplay.
I cannot really see how this works, but
'around' could be 're' (regarding) and 're' is present in the answer.
The remaining letters 'ed' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'does' acts as a link.
Can you help me to learn more?
(Other definitions for reed that I've seen before include "ancient arrow" , "Vibrator in the mouthpiece of a wind instrument" , "Rush" , "oboe part" , "One of two in a 25 [OBOE]" .)