Crossword Genius

Isaac's second son (5)

Ross

I believe the answer is:

jacob

(Other definitions for jacob that I've seen before include "Twin of Esau" , "Brother of Esau" , "Rachel's husband" , "He had a vision of a ladder into heaven with angels going up and down it" , "Father of the twelve patriarchs of Israel" .)

I've seen this clue in the Newsday.
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