Direction indicators (6)
I believe the answer is:
arrows
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">direction indicators</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arrows that I've seen before include "Pointed missiles" , "Missiles for the bowman" , "Archers shafts" , "Darts" , "Those in a quiver" .)