Give claim to name (7)
I believe the answer is:
entitle
'name' is the definition.
(both can mean to give someone a name)
'give claim' is the wordplay.
'give' becomes 'en' (I can't justify this - if you can you should give a lot more credence to this answer).
'claim' becomes 'title' (synonyms).
'en'+'title'='ENTITLE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for entitle that I've seen before include "confer rank" , "Allow" , "Name, authorise" , "Name; enable" , "Give a right or authority to" .)