Constellation next to Hercules (4)
I believe the answer is:
lyra
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">constellation next to hercules</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 lyra that I've seen before include "Asriel's child" , "Group of stars" , "Constellation resembling a musical instrument" , "Constellation near Draco" , "Constellation representing instrument of Orpheus" .)