Bad-tempered old woman (8)
I believe the answer is:
harridan
'bad-tempered old woman' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for harridan that I've seen before include "Scolding or bullying old woman" , "Nagging old woman" , "Nagger" , "Shrewish old woman" , "angry woman" .)