Majestic area somewhere in Georgia (7)
I believe the answer is:
augusta
'somewhere in georgia' is the definition.
(city in the US state of Georgia)
'majestic area' is the wordplay.
'majestic' becomes 'august' (I've seen this before).
'area' becomes 'a' (maths abbreviation).
'august'+'a'='AUGUSTA'
(Other definitions for augusta that I've seen before include "Georgian city, noted for golf tournaments" , "Scene of annual US" , "Female name; capital of state of Maine" , "Graham Greene's travelling aunt" , "American city" .)