Princess who helped Jason get the Golden Fleece from her father (5)

I believe the answer is:

medea

(Other definitions for medea that I've seen before include "Tragedy by Euripedes" , "Greek sorceress" , "Jason's wife who murdered their children" , "Wife of Jason in Greek mythology" , "In Greek myth, Jason's wife who killed their children in jealous rage" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.