In Somerset, it’s a long way from Mile End (5)

I believe the answer is:

frome

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'in somerset it's a long way' is the definition.
I can't tell whether this defines the answer.

'from mile end' is the wordplay.
'end' suggests the final letters.
The last letter of 'mile' is 'e'.
'from'+'e'='FROME'

Can you help me to learn more?

(Other definitions for frome that I've seen before include "West Country town" , "Somerset town" .)

I've seen this clue in the Evening Standard.

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