Ownership certificate (5,4)
(Other definitions for title deed that I've seen before include "Deleted it (anag.)" , "Document establishing legal right to property" , "Document proving ownership" , "proper document" , "Having proof of ownership" .)
'ownership certificate' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for deed that I've seen before include "Heroic exploit" , "Intentional action" , "Document showing ownership" , "What's done" , "Feat" .)