School dinner one can bring home or secretly scrutinize while sitting in a car perhaps (5-3)

I believe the answer is:

stake-out

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'bring home or secretly scrutinize while sitting in a car perhaps' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'school dinner one' is the wordplay.
'school' becomes 'S'.
'dinner one' becomes 'takeout' (I can't justify this - if you can you should believe this answer much more).
's'+'takeout'='STAKE-OUT'

'can' is the link.

Can you help me to learn more?

(Another definition for stake-out that I've seen is " Police surveillance operation".)

I've seen this clue in The Irish Times.

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