Hoard money, it’s said (5)
I believe the answer is:
cache
'hoard' is the definition.
(both can mean a stock of things)
'money it's said' is the wordplay.
'money' becomes 'cash' (cash is a type of money).
'it's said' indicates a 'sounds like' (homophone) clue.
'cash' is a homophone of 'CACHE'.
(Other definitions for cache that I've seen before include "Hiding place for treasure or stores" , "Hiding place for treasure or store" , "Hidden store of things" , "Concealed store" , "memory" .)