Medical instrument (11)
I believe the answer is:
stethoscope
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">medical instrument</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that stethoscope is a type of medical instrument)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for stethoscope that I've seen before include "Instrument used in listening" , "listening device" , "Medical instrument" , "Doctor's instrument" .)