Mother of Levi and Judah (4)
I believe the answer is:
leah
'mother of levi and judah' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for leah that I've seen before include "her elder sister" , "Hale (anag) - wife of Jacob" , "Rachel's sister" , "Heal (anag) - girl" , "Jacobs first wife (Gen.29)" .)