Play a wind instrument β or sing? (4)
I believe the answer is:
pipe
I believe this clue is a quadruple definition!!
'play' is the first definition.
(I know that pipe is a more specific form of the action play)
'a wind' is the second definition.
(pipe is a kind of wind)
'instrument' is the third definition.
(pipe is a kind of instrument)
'or' is a link.
'sing?' is the fourth definition.
(thesaurus)
(Other definitions for pipe that I've seen before include "Tube; wind instrument" , "At sea, signal arrival" , "chanter" , "Tobacco is smoked in it" , "'Tube for water or gas, say (4)'" .)