Wood particles (7)
I believe the answer is:
sawdust
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wood particles</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 sawdust that I've seen before include "it was on pub floor" , "Fine wood shavings" , "fine wooden pieces" , "Carpenter's waste matter" , "Waste from wood processing" .)