Russian banker first runs out of country (4)

I believe the answer is:

ural

'russian banker' is the definition.
(Russian river - something with banks)

I cannot understand how the remainder of the clue works.

(Other definitions for ural that I've seen before include "Runner" , "Asian flower" , "Mountain range in Russia" , "Europe/Asia river" , "River feeding Caspian Sea" .)

I've seen this clue in The Times.

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