A scoop of rice came prepared (8)

I believe the answer is:

icecream

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'a scoop' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see an association between them that I don't see?

'rice came prepared' is the wordplay.
'prepared' indicates an anagram.
'rice'+'came'='ricecame'
'ricecame' is an anagram of 'ICECREAM'.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for icecream that I've seen before include "afters" , "dessert" , "Sweet" .)

I've seen this clue in The Irish Times and the Irish Times (Crosaire).

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