Large scissors with strong blades (6)
I believe the answer is:
shears
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">large scissors with strong blades</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 shears that I've seen before include "something for lifting loads" , "Hedge cutting tool" , "Garden cutters" , "fractures under pressure" , "Fleeces sheep" .)