Rambling early, made packed lunch? (5,4)

I believe the answer is:

ready meal

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'packed lunch?' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives can occasionally define each other.

'rambling early made' is the wordplay.
'rambling' indicates an anagram.
'early'+'made'='earlymade'
'earlymade' is an anagram of 'READY MEAL'.

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I've seen this clue in The Independent.

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