The records broken in an English town (10)

I believe the answer is:

dorchester

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

'an english town' is the definition.
'dorchester' can be an answer for 'town' (I've seen this before). I'm not certain of the 'an english' bit.

'the records broken' is the wordplay.
'broken' indicates an anagram.
'the'+'records'='therecords'
'therecords' is an anagram of 'DORCHESTER'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for dorchester that I've seen before include "historic town" , "Town in Oxfordshire or Dorset" , "Oxford or Dorset town" , "Abbey town south of Oxford" , "Famous hotel" .)

I've seen this clue in the Best For Puzzles.

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