Treat wind following extreme recipe (6)
I believe the answer is:
regale
'treat' is the definition.
(I know that treat can be written as regale)
'wind following extreme recipe' is the wordplay.
'wind' becomes 'gale' (gale is a kind of wind).
'following' is a charade indicator (letters next to each other).
'extreme' means to remove the middle letters.
'recipe' with its centre removed is 're'.
'gale' after 're' is 'REGALE'.
(Other definitions for regale that I've seen before include "Shower" , "Ply" , "Entertain, delight" , "Feed or entertain well" , "Amuse with stories" .)