Elder of Isaac and Rebecca's twins (4)

I believe the answer is:

esau

(Other definitions for esau that I've seen before include "Jacob's brother (Gen.)" , "Hairy brother to Jacob in Bible" , "Old Testament character sounds as if he had a vision" , "First son of Isaac (Bible)" , "Hairy OT man" .)

I've seen this clue in The Wall Street Journal.

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