Pattern knitted into popular anorak (4)

I believe the answer is:

aran

'pattern knitted' is the definition.

'into popular anorak' is the wordplay.
'into' indicates the answer is hidden within the clue.
'ARAN' is hidden within 'popular anorak'.

(Other definitions for aran that I've seen before include "Irish style of knitwear" , "-- Islands; -- sweater" , "traditional type of knitwear" , "islands near 9 [GALWAY]" , "Galway Bay isle" .)

I've seen this clue in The Guardian.

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