Parade stopper (4)
I believe the answer is:
rain
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">parade stopper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rain that I've seen before include "Cats and dogs?" , "Wet weather" , "downfall?" , "See 12" , "Falling moisture" .)