Cutting edges (6)
I believe the answer is:
blades
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cutting edges</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for blades that I've seen before include "cutters" , "Football club nickname" , "Cutting parts of knives" , "Knife edges or dashing fellows" , "Leaves of grass or cutting tools" .)