Plant from Iceland in Essex (9)
I believe the answer is:
celandine
'plant' is the definition.
(celandine is a kind of plant)
'from iceland in essex' is the wordplay.
'from' indicates a hidden word.
'CELANDINE' is hidden within 'iceland in essex'.
(Other definitions for celandine that I've seen before include "Flowering plant - decennial (anag)" , "Land niece with the swallowwort." , "Plant of buttercup family" , "... one blooming" .)