Digest inner pieces or parts of one's meal (11)

I believe the answer is:

ingredients

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'parts of one's meal' is the definition.
'ingredients' can be an answer for 'parts' (ingredient is a kind of part). I'm not certain of the 'of one's meal' bit.

'digest inner pieces' is the wordplay.
'pieces' is an anagram indicator (the same pieces in a new order).
'digest'+'inner'='digestinner'
'digestinner' is an anagram of 'INGREDIENTS'.

'or' is the link.

Can you help me to learn more?

(Another definition for ingredients that I've seen is " Components".)

I've seen this clue in the Sydney Morning Herald.

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