Brightest star in Scorpio (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">brightest star in scorpio</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for antares that I've seen before include "Red supergiant star in Scorpio; nae star (anag.)" , "Star reddened" , "RS [RED STAR]" , "brilliant point" , "Red supergiant star in Scorpius" .)