Will subject (6)
I believe the answer is:
estate
'will subject' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for estate that I've seen before include "Possessions at the time of death" , "All of one's assets -- 5-door car" , "Rank - housing development - car" , "The whole of one's possessionsat death" , "Demesne" .)