Light (into) (3)
I believe the answer is:
rip
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">light into</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rip that I've seen before include "Parting words" , "Letters often carved on gravestones" , "Slash" , "Tear, rent" , "Letters usually seen on gravestone" .)