Organ of sense (3)
I believe the answer is:
ear
I believe this clue is a double definition.
'organ' is the first definition.
(ear is a kind of organ)
'sense' is the second definition.
(ear is a kind of sense)
'of' is the link.
(Other definitions for ear that I've seen before include "Seed container" , "Listening organ" , "Fruiting head of a cereal" , "Attention; seed head" , "Heed" .)