Horribly large (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">horribly large</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for gross that I've seen before include "Earn" , "Rank" , "large total before deductions" , "Make altogether" , "exclamation of disgust" .)
(Other definitions for monstrous that I've seen before include "Shocking; huge" , "Terrible" , "really good!" , "Quite outrageous" , "Extraordinarily large" .)