Folk wisdom about weather in part of France (8)
I believe the answer is:
lorraine
'part of france' is the definition.
(I know this)
'folk wisdom about weather' is the wordplay.
'folk wisdom' becomes 'lore' (I've seen this in another clue).
'about' means one lot of letters goes inside another.
'weather' becomes 'rain' (rain is a kind of weather).
'lore' placed around 'rain' is 'LORRAINE'.
'in' acts as a link.
(Other definitions for lorraine that I've seen before include "Region of eastern France, and famous Cross" , "part of France" , "Region of north-eastern France" , "Girl's name - Nancy's region" , "French duchy" .)