Rain said to spread in Mediterranean location (8)
I believe the answer is:
sardinia
'mediterranean location' is the definition.
'Sardinia' can be an answer for 'location' (Sardinia is an example). I'm not sure about the 'mediterranean' bit.
'rain said to spread' is the wordplay.
'to spread' is an anagram indicator.
'rain'+'said'='rainsaid'
'rainsaid' with letters rearranged gives 'SARDINIA'.
'in' is the link.
Can you help me to learn more?
(Other definitions for sardinia that I've seen before include "Island belonging to Italy" , "Large Italian island, capital Cagliari" , "Second-largest Mediterranean island, after Sicily" , "Island south of Corsica" , "Adrian is seen in Mediterranean island" .)