Digitalis plant (8)
I believe the answer is:
foxglove
'digitalis plant' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for foxglove that I've seen before include "Plant (of the genus 10 down) with bell-shaped flowers" , "Plants of the genus Digitalis" , "Common wild flower" , "Flowering plant that's source of digitalis" , "that grows wild" .)