Flower from Fair Isle (4)
I believe the answer is:
iris
'flower' is the definition.
(iris is a type of flower)
'from fair isle' is the wordplay.
'from' indicates a hidden word.
'IRIS' is hidden in the letters of 'fair isle'.
(Other definitions for iris that I've seen before include "Fleur-de-lis" , "Film about writer _______ Murdoch" , "Ms Murdoch" , "One controlling pupil' s reactions" , "Camera diaphragm" .)