Gold given to good revolutionary -- that's awkward (6)
I believe the answer is:
gauche
'awkward' is the definition.
(thesaurus)
'gold given to good revolutionary' is the wordplay.
'gold' becomes 'au' (Au is the chemical symbol for gold).
'given to' says to put letters next to each other.
'good' becomes 'g' (abbreviation).
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'au' after 'g' is 'gau'.
'gau'+'che'='GAUCHE'
'that's' acts as a link.
(Other definitions for gauche that I've seen before include "'Lacking social polish, awkward (6)'" , "Clumsily tactless" , "Cantona's left" , "Graceless" , "Hug ace, being socially awkward" .)