Grouchy Muppet (5)
I believe the answer is:
oscar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">grouchy muppet</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 oscar that I've seen before include "- - Peterson, pianist" , "Film prize" , "Annual film award" , "Statuette awarded by Hollywood Academy" , "- - Hammerstein (musicals)" .)