Grouch
'grouch' is the definition.
(I know that crab is a type of grouch)
This is all the clue.
(Other definitions for crab that I've seen before include "Ten-legged shellfish" , "Nautical nipper" , "winch" , "Fiddler, perhaps" , "Stalk-eyed crustacean" .)
'grouch' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for grump that I've seen before include "grouse" , "pet?" , "Crosspatch" , "Sulky type" , "Bad-tempered person" .)
'grouch' is the definition.
(I know that grouch can be written as crank)
This is all the clue.
(Other definitions for crank that I've seen before include "Person of eccentric habits" , "Turn a handle - weirdo" , "Eccentric - starting handle" , "Wind (up) - oddball" , "Turn (engine handle); eccentric" .)