Crop cutter (6)
I believe the answer is:
scythe
'crop cutter' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for scythe that I've seen before include "Old-fashioned hand-held hay mower" , "Bladed cropping implement" , "Cut down - grass-cutting implement" , "Cutting instrument" , "Reaping blade" .)