In French, Hugo managed adequately (6)
I believe the answer is:
enough
'adequately' is the definition.
(synonyms)
'in french hugo managed' is the wordplay.
'in french' becomes 'en' ('in' in French).
'managed' indicates an anagram.
'hugo' is an anagram of 'ough'.
'en'+'ough'='ENOUGH'
(Other definitions for enough that I've seen before include "As much as needed" , "Plenty" , "Adequate amount to meet the purpose" , "Sufficient to answer demand" , "As much as necessary" .)