The sun, for one (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the sun for one</span>' is the definition.<br/ ><span class="explanation-format__explanation">(sun is a kind of star)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for star that I've seen before include "feature in film" , "White blaze on a horse's forehead" , "Outstanding entertainer" , "Brilliant person" , "Rush" .)
(Another definition for daystar that I've seen is " sun".)