General unchallenged about meal (5)

I believe the answer is:

lunch

'meal' is the definition.
(lunch is a kind of meal)

'general unchallenged about' is the wordplay.
'about' indicates a hidden word.
'LUNCH' can be found hidden inside 'general unchallenged'.

(Another definition for lunch that I've seen is " Midday meal".)

I've seen this clue in The Mirror.

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