Sneak attack
I believe the answer is:
raid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sneak attack</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 raid that I've seen before include "Surprise police visit" , "A sudden attack or incursion" , "Assault, attack" , "Invade" , "Sudden and surprise attack" .)