Pitchfork feature (5)
I believe the answer is:
prong
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pitchfork feature</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 prong that I've seen before include "Fork's point" , "Tooth" , "Something piercing" , "Spike of fork etc" , "branch" .)