Ensure obedience from children for certain (7)

I believe the answer is:

enforce

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'ensure obedience' is the definition.
I can't judge whether this defines the answer.

'from children for certain' is the wordplay.
'from' indicates the answer is hidden within the clue.
'ENFORCE' is hidden within 'children for certain'.

Can you help me to learn more?

(Other definitions for enforce that I've seen before include "Impose by necessity" , "Insist on" , "Compel or impose obedience, say to law" , "Compel adherence to (a law)" , "Implement - compel" .)

I've seen this clue in The Irish Independent.

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