Top town in Wales (8)

I believe the answer is:

cardigan

This clue is a double definition.

'top' is the first definition.
(I know that cardigan is a type of sweater)

'town in wales' is the second definition.
(I've seen this before)

(Other definitions for cardigan that I've seen before include "Noble officer" , "Woollen jacket" , "town in Wales" , "Knitted jumper with buttons" , "Knitted sweater - Welsh Bay" .)

I've seen this clue in The Telegraph.

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