Barley beard (3)
I believe the answer is:
awn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">barley beard</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 awn that I've seen before include "Bristly head of barley sheath, quite wan" , "Bristle growing on barley" , "Stiff bristle on grasses" , "Grass "beard"" , "Beard of plant" .)