Military aircraft (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">military aircraft</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 bomber that I've seen before include "warplane" , "It may be smoked" , "Eg, Lancaster, Vulcan" , "military plane" , "Zip-up garment elasticated at the waist and cuffs" .)
(Other definitions for dive bomber that I've seen before include "gannet?" , "military craft" , "Jolly threatening" .)