Having made will, head leaves landed property (6)
I believe the answer is:
estate
'landed property' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for estate that I've seen before include "Property left at death" , "What you leave when you die" , "Industrial area" , "park perhaps" , "All of one's assets and liabilities" .)