Stories about precipitation in French region (8)
I believe the answer is:
lorraine
'french region' is the definition.
(Lorraine is an example)
'stories about precipitation' is the wordplay.
'stories' becomes 'lore' (I've seen this in other clues).
'about' means one lot of letters goes inside another.
'precipitation' becomes 'rain' (rain is a kind of precipitation).
'lore' placed around 'rain' is 'LORRAINE'.
'in' acts as a link.
(Other definitions for lorraine that I've seen before include "Region linked to Alsace" , "Girl's name - Nancy's region" , "Region of NE France" , "part of France" , "French duchy" .)