Resolute nurses Keir ordered to be dismissed (6,3)

I believe the answer is:

strike out

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'be dismissed' is the definition.
I can't judge whether this defines the answer.

'resolute nurses keir ordered' is the wordplay.
'resolute' becomes 'stout' (similar in meaning).
'nurses' indicates putting letters inside (nurse can mean to hold onto or harbour).
'ordered' indicates anagramming the letters.
'keir' anagrammed gives 'rike'.
'stout' placed around 'rike' is 'STRIKE-OUT'.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for strike out that I've seen before include "Erase" , "Knock unconscious" , "remove" .)

I've seen this clue in The Independent.

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