Command given by sergeant looks correct (4,5)

I believe the answer is:

eyes right

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'command given by sergeant' is the definition.
'eyes right' can be an answer for 'command' (I've seen this before). I am not certain of the 'given by sergeant' bit.

'looks correct' is the wordplay.
'looks' becomes 'eyes' (eyeing is a kind of looking).
'correct' becomes 'right' (right can mean correct).
'eyes'+'right'='EYES RIGHT'

Can you help me to learn more?

(Other definitions for eyes right that I've seen before include "Military command" , "Look over there" , "Order" .)

I've seen this clue in The Irish Times.

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