Landed with this document? (5,4)
I believe the answer is:
title deed
'landed with this document?' is the definition.
'title deed' can be an answer for 'document?' (title deed is a kind of document). I'm not certain of the rest of the definition.
'landed with this document?' is the wordplay.
'landed with' becomes 'title' (I can't explain this - if you can you should give a lot more credence to this answer).
'this document?' becomes 'deed' (deed is a kind of document).
'title'+'deed'='TITLE-DEED'
Can you help me to learn more?
(Other definitions for title deed that I've seen before include "Document establishing legal right to property" , "proper document" , "Having proof of ownership" , "Document giving legal right of ownership" , "Document proving ownership" .)