Second son of Jacob and Leah (6)
I believe the answer is:
simeon
'second son of jacob and leah' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for simeon that I've seen before include "Second son of Jacob and Leah, and his tribe" , "Jacob's son" , "Jewish tribe; St --- Stylites" .)