Talk by European getting gold from French castle (7)
I believe the answer is:
chateau
'french castle' is the definition.
('castle' in French)
'talk by european getting gold' is the wordplay.
'talk' becomes 'chat' (I've seen this in other clues).
'by' is a charade indicator (letters next to each other).
'european' becomes 'E' (abbreviation e.g. EU).
'getting' means one lot of letters go next to another.
'gold' becomes 'Au' (Au is the chemical symbol for gold).
'chat'+'e'+'au'='CHATEAU'
'from' acts as a link.
(Other definitions for chateau that I've seen before include "French manor house" , "Manor-house in France" , "eg Margaux" , "Large French country house" , "Impressive house in France" .)