Legal document that can be read two ways (4)
I believe the answer is:
deed
I believe this clue is a double definition.
'legal document' is the first definition.
(deed is a kind of legal document)
'that can be read two ways' is the second definition.
(Other definitions for deed that I've seen before include "Document showing ownership" , "Intentional action" , "Something done" , "A conscious action" , "Legal document for transfer of property" .)