A familiar wind instrument (3)
I believe the answer is:
sax
This clue might be a double definition.
'a familiar wind' is the first definition.
'sax' can be an answer for 'wind' (sax is a kind of wind). I am not certain of the 'a familiar' bit.
'instrument' is the second definition.
(I know that sax is a type of woodwind instrument)
Can you help me to learn more?
(Other definitions for sax that I've seen before include "Wind instrument (abbr)" , "Music-maker" , "Jazz instrument (abbr)" .)