Minor bodyguard watches youngsters (11)

I believe the answer is:

childminder

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'minor bodyguard watches youngsters' is the definition.
I can't tell whether this definition defines the answer.

'minor bodyguard' is the wordplay.
'minor' becomes 'child' (synonyms).
'bodyguard' becomes 'minder' (I've seen this before).
'child'+'minder'='CHILDMINDER'

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I've seen this clue in The Mirror.

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