A fellow with the gift of the gab and rich (8)
I believe the answer is:
affluent
'rich' is the definition.
(similar in meaning)
'a fellow with the gift of the gab' is the wordplay.
'fellow' becomes 'F' (abbreviation - of a society etc.).
'with' is a charade indicator (letters next to each other).
'the gift of the gab' becomes 'fluent' (I am not sure about this - if you are sure you should believe this answer much more).
'a'+'f'+'fluent'='AFFLUENT'
'and' is the link.
Can you help me to learn more?
(Other definitions for affluent that I've seen before include "Well-to-do, got lots of money" , "Flute fan may be wealthy" , "Rich; flowing freely" , "Well-off" , "Wealthy - abundant" .)