Stylus (6)
I believe the answer is:
needle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stylus</span>' is the definition.<br/ ><span class="explanation-format__explanation">(needle is a kind of stylus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for needle that I've seen before include "Irritate, goad" , "Annoy - syringe" , "Long thin leaf of pine tree" , "It points" , "Irritate; pine leaf" .)