Seriously
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">seriously</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that seriously can be written as in earnest)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">seriously?</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 no joke that I've seen before include "Not a trifling matter" , "A serious matter" .)
(Other definitions for joking apart that I've seen before include "If I may be serious" , "But seriously ..." , "Ayckbourn play" .)