Air attack (4)
I believe the answer is:
raid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">air 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 "Assault, attack" , "Surprise police visit" , "bust" , "Go on the attack" , "Maraud" .)