Girl in a Fair Isle sweater (4)

I believe the answer is:

iris

'girl' is the definition.
(girl's name)

'in a fair isle sweater' is the wordplay.
'in' indicates the answer is hidden within the clue.
'IRIS' is hidden in the letters of 'fair isle sweater'.

(Other definitions for iris that I've seen before include "Eye diaphragm" , "who keeps pupil in?" , "bit of mince pie" , "Fleur-de-lis" , "Fleur-de-lys" .)

I've seen this clue in the Evening Standard.

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