Deprive of family jewels? (10)
I believe the answer is:
disinherit
'deprive' is the definition.
(disinheriting is a kind of depriving)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for disinherit that I've seen before include "Write out of a will" , "Lanarkshire town" , "Remove as heir" , "Cut off as with a shilling" .)