Fine instrument? (5)
I believe the answer is:
flute
'fine instrument?' is the definition.
'flute' can be an answer for 'instrument?' (I've seen this before). I am not certain of the 'fine' bit.
'fine instrument?' is the wordplay.
'fine' becomes 'f' (abbreviation).
'instrument?' becomes 'lute' (lute is a kind of instrument).
'f'+'lute'='FLUTE'
Can you help me to learn more?
(Other definitions for flute that I've seen before include "Wine glass; instrument" , "Champagne glass" , "Blown" , "See 20" , "Wind instrument" .)