He had a right inside to be listened to (5)
I believe the answer is:
heard
'be listened to' is the definition.
(I've seen this before)
'he had a right inside' is the wordplay.
'he had' becomes 'hed'.
'a right' becomes 'ar' (I've seen this in other clues).
'inside' indicates putting letters inside.
'hed' enclosing 'ar' is 'HEARD'.
'to' is the link.
(Other definitions for heard that I've seen before include "Listened to (sound)" , "Perceived by the ear" , "Gave ear to" , "Examined" , "Picked up by the ears?" .)