Lady shares gold inside (7)
I believe the answer is:
dolores
'lady' is the definition.
(I've seen this before)
'shares gold inside' is the wordplay.
'shares' becomes 'doles' (dole is a kind of share).
'gold' becomes 'or' ('or' is the heraldic name for gold).
'inside' is an insertion indicator.
'doles' enclosing 'or' is 'DOLORES'.
(Other definitions for dolores that I've seen before include "Old sore about girl" , "Female" , "Lady" .)