Facetious (7)
I believe the answer is:
jocular
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">facetious</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for jocular that I've seen before include "Given to telling gags (and having fun)" , "Humorous or playful" , "Humorous, joking" , "funny" , "With jokes and good humour" .)