Not having made a will (9)
I believe the answer is:
intestate
'not having made a will' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for intestate that I've seen before include "dead without having made a will" , "not prepared to leave" , "One without will" , "Not having planned to leave" , "Undecided about who should inherit" .)