"East of Eden" brother (4)

I think it could be either:

Which length description are you looking for?:

aron

'east of eden brother' is the definition.
(I've seen this in another clue)

This is the entire clue.

I've seen this clue in the LA Times and the Penny Press.

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.