Festivity, fun (7)
I believe the answer is:
revelry
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">festivity</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that revelry is a type of conviviality)</span><br/ ><br/ >'<span class="explanation-format__original">fun</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for revelry that I've seen before include "Jolly parties" , "Riotous feasting" , "Feasting, noisy festivities" , "Merrymaking" , "Noisy celebration" .)