Keep quiet in emergency room with a black eye perhaps (6)

I believe the answer is:

shiner

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'a black eye perhaps' is the definition.
I can't judge whether this definition defines the answer.

'keep quiet in emergency room' is the wordplay.
'keep quiet' becomes 'sh'.
'emergency room' becomes 'ER' (abbreviation popularized by US TV series).
'sh'+'in'+'er'='SHINER'

'with' acts as a link.

Can you help me to learn more?

(Other definitions for shiner that I've seen before include "A slangy black eye" , "Slang for a black-eye" , "Black eye (colloq.)" , "Possible end of scrapping" , "Her sin (anag)" .)

I've seen this clue in The Hindu.

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