Philosopher offers wine and gold when entertaining us (8)
I believe the answer is:
rousseau
'philosopher' is the definition.
(Rousseau is an example)
'wine and gold when entertaining us' is the wordplay.
'wine' becomes 'rose' (rose wine is a kind of wine).
'and' says to put letters next to each other.
'gold' becomes 'au' (Au is the chemical symbol for gold).
'when entertaining' means one lot of letters goes inside another.
'rose'+'au'='roseau'
'roseau' enclosing 'us' is 'ROUSSEAU'.
'offers' is the link.
(Other definitions for rousseau that I've seen before include "Jean-Jacques --, Swiss-French philosopher" , "French painter known as le Douanier" , "Arouse us like Jean-Jacques . . . . . . . ., philosopher" , "Jean-Jacques --, Genevan philosopher" , "Painter, Henri - philosopher, Jean Jacques" .)