Woodland plant, one with unusual name (7)
I believe the answer is:
anemone
'woodland plant' is the definition.
(I've seen this before)
'one with unusual name' is the wordplay.
'with' means one lot of letters go next to another.
'unusual' indicates an anagram.
'name' anagrammed gives 'anem'.
'one' after 'anem' is 'ANEMONE'.
(Other definitions for anemone that I've seen before include "Plant of the buttercup family - one name (anag)" , "Colourful plant of buttercup family" , "Plant of the buttercup family with brightly coloured flowers" , "Bright flower or sea plant" , "Growth" .)