Disney dwarf (6)
(Other definitions for grumpy that I've seen before include "Ill-humoured" , "Crabby and grouchy" , "Bad-tempered and out of sorts, like one of the Seven Dwarfs" , "likely to snap?" , "Peevish" .)
(Other definitions for sneezy that I've seen before include "Doc's pal with hay fever" , "One of Disney's dwarfs" , "Sternutatory dwarf" , "Dwarf (with a hanky?)" , "Disney dwarf - with a cold?" .)