Surgeon's blade (7)
I believe the answer is:
scalpel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">surgeon's blade</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 scalpel that I've seen before include "Sharp cutting tool" , "Dissecting knife" , "Surgical blade" , "Theatrical knife?" , "Surgical instrument" .)