Novelist Johansen (4)
I believe the answer is:
iris
'novelist johansen' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for iris that I've seen before include "Rainbow-goddess" , "Goddess of the rainbow in the eye" , "Flower and eye membrane" , "bit of a looker" , "--- Murdoch, author" .)