Muslim festival (3)
I believe the answer is:
eid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">muslim festival</span>' is the definition.<br/ ><span class="explanation-format__explanation">(Islamic term for festival, eg Eid al-Fitr)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for eid that I've seen before include "religious festival" , "feast" .)