Jewish festival (8)
(Other definitions for passover that I've seen before include "Disregard - Jewish festival" , "spring festival" , "religious festival" , "feast - with 25a" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jewish festival</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for purim that I've seen before include "Jewish feast" , "Jewish festival" , "Jewish holy day" .)