Having finally left everything one can leave (7)
I believe the answer is:
testate
'leave' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for testate that I've seen before include "Having made a last will and testament" , "Having made a will before death" , "Person willing" , "Having made a legal will" , "Having left valid will at death" .)