Embarrassed when depicted as a bit superior? (5,2)

I believe the answer is:

shown up

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'embarrassed' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for shown up that I've seen before include "Arrived" , "Put to shame" , "put in a bad light" , "embarrassed" , "Appeared" .)

I've seen this clue in the Evening Standard.

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