Bird lime — I’m going for ownership (5)
I believe the answer is:
title
'ownership' is the definition.
(I have seen 'Legal ownership ' mean 'title' so perhaps 'ownership' could also mean 'title')
'bird lime i'm going' is the wordplay.
'bird' becomes 'tit' (tit is a kind of bird).
'going' is a deletion indicator.
'lime' with 'im' taken away is 'le'.
'tit'+'le'='TITLE'
'for' is the link.
(Other definitions for title that I've seen before include "Appellation of rank" , "Legal document regarding transfer of ownership: appellation" , "Name signifying rank" , "Document showing legal right to possess a property" , "What could be professor's" .)