Old Greek woman well able to throw a hissy fit? (6)
I believe the answer is:
medusa
'old greek' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for medusa that I've seen before include "Snake-haired gorgon" , "Monster" , "One of three sisters with snakes for hair" , "all her visitors got stoned" , "Form of jellyfish" .)