Is not hostile to a French legend (7)
I believe the answer is:
affable
'is not hostile' is the definition.
I can't judge whether this definition defines the answer.
'a french legend' is the wordplay.
'french' becomes 'f'.
'legend' becomes 'fable' ('fable' can be a synonym of 'legend').
'a'+'f'+'fable'='AFFABLE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for affable that I've seen before include "Pleasant and easygoing" , "Good-natured, sociable" , "Courteous of pleasantly easy-going" , "Amiable, genial" , "Kindly" .)