"I'm game!” (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">i'm game</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 lets that I've seen before include "Allows or causes to" , "we shall serve them again!" , "Leases" , "Yes" , "Rents out or allows" .)