Shoulder-to-elbow bone (7)
I believe the answer is:
humerus
'shoulder-to-elbow bone' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for humerus that I've seen before include "Boneo of the upper arm" , "Upper arm bone" , "Bone that sounds funny?" , "Arm bone (that sounds comical)" , "What's often thought funny" .)