Sirius (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sirius</span>' is the definition.<br/ ><span class="explanation-format__explanation">(Sirius is the Dog Star)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dog star that I've seen before include "Night light" , "Sirius in the sky" , "slightly flashy night-spot?" , "Lassie, perhaps" , "Drags to find other name for Sirius" .)
(Other definitions for dogstar that I've seen before include "animal on TV?" , "This the brightest" , "Bright night light" .)