Seesaw sitter of classic tongue twisters (4)

I believe the answer is:

esau

(Other definitions for esau that I've seen before include "Elder of the twin sons of Isaac and Rebecca" , "brother done in Bible" , "Son of Isaac, brother to Jacob (Bible)" , "Biblical brother to Jacob" , "Old Testament twin" .)

I've seen this clue in the LA Times.

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.