Country area close to region with granite rocks (9)
I believe the answer is:
argentina
'country' is the definition.
(I know that Argentina is a country)
'area close to region with granite rocks' is the wordplay.
'area' becomes 'a' (maths abbreviation).
'close to' says to take the final letters (the close of something is the end).
'with' means one lot of letters go next to another.
'rocks' indicates anagramming the letters.
The final letter of 'region' is 'n'.
'n' put after 'granite' is 'graniten'.
'graniten' anagrammed gives 'rgentina'.
'a'+'rgentina'='ARGENTINA'
(Other definitions for argentina that I've seen before include "Song from 'Evita' - 'Don't Cry For Me . . . . . . . . . '" , "Silver country" , "An ingrate in S American country" , "Home of the tango" , "Ta, Grannie, for the odd country" .)