Be defeated (4)

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">be defeated</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 lose that I've seen before include "Fail to keep" , "Be beaten" , "Cease to have" , "Suffer a defeat" , "Shake off (a pursuer)" .)
(Other definitions for bite the dust that I've seen before include "getting soiled teeth?" , "Completely fail; die" , "Perish" , "Fall badly" , "Fall down dead" .)