Cranky Disney dwarf (6)

I believe the answer is:

grumpy

(Other definitions for grumpy that I've seen before include "An ill-tempered dwarf of group of Seven" , "Moodily cross" , "Gloomy and irritable like sour old man" , "Ill-tempered and crabby" , "Doc's irritable pal" .)

I've seen this clue in The Guardian.

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