Legend has point for French writer (5)
I believe the answer is:
sagan
'for french writer' is the definition.
(I've seen this in another clue)
'legend has point' is the wordplay.
'legend' becomes 'saga' (I've seen this before).
'has' is a charade indicator (letters next to each other).
'point' becomes 'n' (North).
'saga'+'n'='SAGAN'
(Other definitions for sagan that I've seen before include "French authoress" , "French author" , "US scientist" , "Author of Bonjour Tristesse, d. 2004" , "Astronomer" .)