Cat bell (3)
I believe the answer is:
tom
I believe this is a double definition.
'cat' is the first definition.
(a tom is a male cat)
'bell' is the second definition.
(I've seen this before)
(Other definitions for tom that I've seen before include "Boy running off with pig" , "Repeated twice, this becomes an African drum" , "Thumb" , "Very small person" , "Male beast" .)