Fairish girl? (4)

I believe the answer is:

iris

I'm a little stuck... Click here to teach me more about this clue!

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

'fairish' is the wordplay.
'IRIS' is hidden in amongst the letters.
But, I am not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for iris that I've seen before include "Pupil is at the centre of this" , "Female" , "Murdoch in writing" , "Flower - rainbow" , "Rainbow - flag" .)

I've seen this clue in the Evening Standard.

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