Tine (5)
I believe the answer is:
prong
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tine</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for prong that I've seen before include "Something piercing" , "Point of a fork" , "Spur; projecting part" , "Pointed end of fork" , "branch" .)