Snow particle (5)
I believe the answer is:
flake
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">snow particle</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 flake that I've seen before include "Sliver" , "Small flat scale" , "Small piece of snow" , "Piece of skin or snow" , "Flat thin fragment" .)