Sort the French arouse (6)
I believe the answer is:
kindle
'arouse' is the definition.
(synonyms)
'sort the french' is the wordplay.
'sort' becomes 'kind' (synonyms).
'the french' becomes 'le' ('the' in French).
'kind'+'le'='KINDLE'
(Other definitions for kindle that I've seen before include "collection of books?" , "Modern book store" , "Start to burn" , "Inflame" , "Exclamation, shout" .)