A few remain unsettled at heart in English county (8)

I believe the answer is:

somerset

I'm a little stuck... Click here to teach me more about this clue!

'english county' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for somerset that I've seen before include "Wells's county" , "County of southern England" , "Rome's set up in this English county" , "head over heels" , "Part of UK" .)

I've seen this clue in The Independent.

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