Evidence of right to a name (5)
I believe the answer is:
title
This clue might be a double definition.
'evidence of right' is the first definition.
'title' can be an answer for 'right' (title is a kind of right). I'm not certain of the 'evidence of' bit.
'name' is the second definition.
(eg the name of a book)
'to a' is the link.
Can you help me to learn more?
(Other definitions for title that I've seen before include "Championship -- form of address" , "Designation of honour, rank or office" , "Identifying name" , "Document showing legal right to possess a property" , "The name of a work of art or book" .)