Scrooge's cry (3)
I believe the answer is:
bah
'scrooge's cry' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for bah that I've seen before include "Expression of disgust or contempt" , "''... Humbug'' Scrooge's cry" , "Exclamation of contempt or disgust - Scrooge used to say it" , "Disbelieving expression" , "Appalling!" .)