Airborne? (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">airborne</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 flying that I've seen before include "Journeying through the air, maybe with Ryanair" , "Taking flight" , "& 20 Maritime aircraft" , "Aviation" , "Famous train once from King's Cross" .)
(Other definitions for oral that I've seen before include "Related to the mouth" , "Mouth-related" , "Ant; tourist (dial.)" , "from the trap" , "By word of mouth, like some exams" .)