Squeal – or make a whistling sound (4)
I believe the answer is:
sing
(Other definitions for sing that I've seen before include "Vocalise musically" , "Act as informer" , "Blow the whistle" , "Chorus" , "Make melodious sounds with voice" .)
I believe the answer is:
sing
(Other definitions for sing that I've seen before include "Vocalise musically" , "Act as informer" , "Blow the whistle" , "Chorus" , "Make melodious sounds with voice" .)