Festive occasion (4)

I believe the answer is:
gala
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">festive occasion</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for gala that I've seen before include "field day" , "Festive celebration" , "Festive performance" , "Prod with the elbow" , "A festive occasion, perhaps of sporting nature" .)