A female, silver-tongued and wealthy (8)
I believe the answer is:
affluent
'wealthy' is the definition.
('affluent' can be a synonym of 'wealthy')
'a female silver-tongued' is the wordplay.
'a female' becomes 'af' (I've seen this in other clues).
'silver-tongued' becomes 'fluent' ('fluent' can be a synonym of 'silver-tongued').
'af'+'fluent'='AFFLUENT'
'and' is the link.
(Other definitions for affluent that I've seen before include "Loaded" , "Well-to-do, got lots of money" , "Well-heeled" , "Well off, having plenty of money" , "Wealthy, rich" .)