Plant with fronds (4)
I believe the answer is:
fern
'plant with fronds' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for fern that I've seen before include "Flowerless plant with feathery fronds" , "Often shady plant" , "Feathery frond plant" , "Girl - bracken" , "Non-flowering plant" .)