Drop tool (3)
I believe the answer is:
axe
I believe this is a double definition.
'drop' is the first definition.
(I've seen this in another clue)
'tool' is the second definition.
(I know that axe is a type of tool)
(Other definitions for axe that I've seen before include "Tool for cutting, chopping" , "Fire weapon" , "Remove ruthlessly or suddenly" , "Abandon project with chopping tool" , "Chop" .)