Fox's tail (5)
I believe the answer is:
brush
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fox's tail</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for brush that I've seen before include "Undergrowth, fox tail" , "Sweeping implement" , "Sweep" , "Cleaning implement" , "Slight touch; fox's tail" .)