Hide family money first (8)
I believe the answer is:
buckskin
'hide' is the definition.
(thesaurus)
'family money first' is the wordplay.
'family' becomes 'kin' (synonyms).
'money' becomes 'bucks' (I've seen this before).
'first' means one lot of letters go next to another.
'kin' put after 'bucks' is 'BUCKSKIN'.
(Other definitions for buckskin that I've seen before include "Soft, yellowish suede leather" , "Type of leather" , "Soft leather or wool fabric" , "horse" .)