May school event, often (4)
I believe the answer is:
prom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">may school event often</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 prom that I've seen before include "Albert Hall concert" , "Seafront" , "Concert; US college dance" , "Esplanade" , "Walkway; concert" .)