Dog in story for The Listener (4)
I believe the answer is:
tail
'dog' is the definition.
(I know that dog can be written as tail)
'story for the listener' is the wordplay.
'story' becomes 'tale' (synonyms).
'for the listener' shows a homophone (sound like).
'tale' is a homophone of 'TAIL'.
'in' acts as a link.
(Other definitions for tail that I've seen before include "Rear appendage of animal" , "bum" , "Animal's elongated appendage" , "that can be cast by a lizard" , "Shadow" .)