There must be the will to provide them (8)
I believe the answer is:
legacies
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for legacies that I've seen before include "They're left in a will" , "Things handed down by predecessors" , "Gifts made by will" , "Gifts of personal property by will" , "Articles or goods left in a will" .)