Musical instrument; tube (4)
I believe the answer is:
pipe
I believe this is a double definition.
'musical instrument' is the first definition.
(I know that Pipe is a type of woodwind instrument)
'tube' is the second definition.
(pipes are tubular)
(Other definitions for pipe that I've seen before include "Meerschaum" , "It can be played or smoked" , "Tube to carry water, gas etc" , "Tube for conveying gas or liquid" , "Something in the organ loft" .)