Musical instrument; tube (4)
I believe the answer is:
pipe
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">musical instrument</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that Pipe is a type of woodwind instrument)</span><br/ ><br/ >'<span class="explanation-format__original">tube</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(pipes are tubular)</span><br/ ><br/ ></span>
(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" .)