Parts of Oxford maybe fashionable, only small (7)

I believe the answer is:

insoles

'parts of oxford maybe' is the definition.
(Oxford is a type of shoe)

'fashionable only small' is the wordplay.
'fashionable' becomes 'in' (similar in meaning).
'only' becomes 'sole' (synonyms).
'small' becomes 's' (abbreviation - e.g. clothes size).
'in'+'sole'+'s'='INSOLES'

I've seen this clue in The Telegraph.

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