Galaxy (5,3)
I believe the answer is:
milky way
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">galaxy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that Milky Way is a type of galaxy)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for milky way that I've seen before include "Lots of stars" , "Star-studded band" , "Galaxy containing our solar system" , "Millions of stars in a band of light across the night sky" , "Galaxy, broad faintly luminous band of stars" .)