Timber tool (4)
I believe the answer is:
adze
'timber tool' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for adze that I've seen before include "Daze (anag.)" , "One cuts" , "Axe-like tool" , "One used to cut" , "Sounds as if one appends the tool for shaping wood." .)