Butterfly snarers (4)
I believe the answer is:
nets
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">butterfly snarers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nets that I've seen before include "Catches (fish)" , "Captures" , "(Period for) cricket practice" , "Traps, to catch fish say" , "puts ball into goal" .)