Italian translated Plato, and Annie (10)
I believe the answer is:
neapolitan
'italian' is the definition.
(I've seen this before)
'translated plato and annie' is the wordplay.
'translated' is an anagram indicator.
'and' says to put letters next to each other.
'plato'+'annie'='platoannie'
'platoannie' anagrammed gives 'NEAPOLITAN'.
(Other definitions for neapolitan that I've seen before include "Italian citizen" , "Italian native" , "chocolate" , "One coming from Campania" , "21 [ITALIAN]" .)