Rushes oboe parts (5)
I believe the answer is:
reeds
I believe this clue is a double definition.
'rushes' is the first definition.
(I've seen this in another clue)
'oboe parts' is the second definition.
(I've seen this in another clue)
(Other definitions for reeds that I've seen before include "Tall grasses with hollow stems" , "Water plants" , "pens for sheep" , "Tall water grasses on lake shore" , "River grasses" .)