Prominent constellation (5)
I believe the answer is:
orion
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">prominent constellation</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for orion that I've seen before include "Group in heaven" , "Greek hunter of myth or bright constellation" , "One who would hunt" , "Constellation that includes Betelgeuse" , "Constellation on the celestial equator -- giant hunter of Greek mythology" .)