Van Gogh painting (6)
I believe the answer is:
irises
'van gogh painting' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for irises that I've seen before include "Flowers painted by Van Gogh" , "Flowers found in the eye" , "Plants with sword-shaped leaves" , "Coloured membranes in eyes, or showy flowers" , "Eye membranes or showy flowers." .)