Orpheus' instrument (4)
I believe the answer is:
lyre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">orpheus' instrument</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lyre that I've seen before include "Music-maker" , "Ancient Greek harp" , "Ancient Greece harp" , "Instrument played by Orpheus" , "Ancient musical instrument - sounds mendacious" .)