Reaping tool (6)
I believe the answer is:
scythe
'reaping tool' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for scythe that I've seen before include "Manual tool of reaper" , "Chesty (anag) -- reaping tool" , "Reaper's tool" , "Grass-cutter" , "Crop-cutting tool" .)