French author never translated (5)
I believe the answer is:
verne
'french author' is the definition.
(Jules Verne)
'never translated' is the wordplay.
'translated' indicates an anagram.
'never' anagrammed gives 'VERNE'.
(Other definitions for verne that I've seen before include "Jules --, French writer" , "Jules ..... wrote ` `20,000 Leagues under the Sea' '" , "See 27 Across" , "Jules --, French author" , "French novelist" .)