Direction indicator (5)
I believe the answer is:
arrow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">direction indicator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for arrow that I've seen before include "One in a quiver" , "Missile with a straight thin shaft" , "Missile with a point" , "Missile fired from bow" , "What's shot from a bow" .)