Seating arrangement at the bank? (4)

I believe the answer is:

tier

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'seating arrangement' is the first definition.
'tier' can be an answer for 'arrangement' (tier is a kind of arrangement). I'm unsure of the 'seating' bit.

'the bank?' is the second definition.
(both can mean a row of similar things)

'at' is the link.

Can you help me to learn more?

(Other definitions for tier that I've seen before include "Level within hierarchy" , "Rite about layer" , "Rank - order" , "Row (of seats)" , "I might draw" .)

I've seen this clue in the Evening Standard.

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.