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Oslo data Pat processed and made a meal of (6,5)

Ross

I believe the answer is:

potato salad

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'and made a meal of' is the definition.
I can't judge whether this definition defines the answer.

'oslo data pat processed' is the wordplay.
'processed' indicates an anagram.
'oslo'+'data'+'pat'='oslodatapat'
'oslodatapat' is an anagram of 'POTATO SALAD'.

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(Another definition for potato salad that I've seen is " portion of food".)

I've seen this clue in The Irish Independent.
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