Woodwind instruments (5)
There are a few possibilities for this:
clarinets
'woodwind instruments' is the definition.
(oboe is a kind of woodwind instrument)
This is the entire clue.
(Other definitions for oboes that I've seen before include "They're instrumental" , "Wind instruments" , "Parts of orchestra" , "Reed instruments" , "Woodwind instruments" .)
'woodwind instruments' is the definition.
(sax is a kind of woodwind instrument)
This is all the clue.
'woodwind instruments' is the definition.
(clarinet is a kind of woodwind instrument)
This is the entire clue.
(Other definitions for clarinets that I've seen before include "Woodwind instruments with fingerholes and keys" , "Keyed woodwind instruments with single reed" .)