One who helps France to be free (10)
I believe the answer is:
benefactor
'one who helps' is the definition.
'france to be free' is the wordplay.
'free' indicates anagramming the letters.
'france'+'to'+'be'='francetobe'
'francetobe' is an anagram of 'BENEFACTOR'.
(Other definitions for benefactor that I've seen before include "Patron, sponsor" , "Person giving to a good cause" , "One giving to worthy cause" , "One provides bread" , "One giving money to a cause" .)