See storm brewing somewhere in the south-west (8)

I believe the answer is:

somerset

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'somewhere in the south-west' is the definition.
I can't tell whether this defines the answer.

'see storm brewing' is the wordplay.
'brewing' is an anagram indicator.
'see'+'storm'='seestorm'
'seestorm' is an anagram of 'SOMERSET'.

Can you help me to learn more?

(Other definitions for somerset that I've seen before include "Mendip county; a London House" , "English county in the West Country" , "Wells's county" , "western county" , "Southern English county" .)

I've seen this clue in The Guardian.

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