Toothed cutting tool (3)
I believe the answer is:
saw
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">toothed cutting tool</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for saw that I've seen before include "Implement for cutting wood" , "Cutting tool or old saying" , "item in tool kit" , "Realised" , "Toothed cutting tool" .)