Steal game (5)
I believe the answer is:
poach
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">steal game</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for poach that I've seen before include "Appropriate" , "Steal (game) - cook (eggs)" , "Acquire illegally" , "Cook (an egg) in water" , "Take game illegally from land or water" .)