Refined style associated with good girl (8)

I believe the answer is:

cutglass

'refined' is the definition.
(used to describe a formal or refined accent)

'style associated with good girl' is the wordplay.
'style' becomes 'cut' (synonyms).
'associated with' says to put letters next to each other.
'good girl' becomes 'glass' (I've seen this in other clues).
'cut'+'glass'='CUTGLASS'

(Another definition for cutglass that I've seen is " Refined".)

I've seen this clue in The Telegraph.

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