Roll over containers for undeveloped fruit (7)

I believe the answer is:

nubbins

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'for undeveloped fruit' is the definition.
I can't tell whether this defines the answer.

'roll over containers' is the wordplay.
'roll' becomes 'bun' (synonyms).
'over' is a reversal indicator.
'containers' becomes 'bins' (bin is a kind of container).
'bun' reversed gives 'nub'.
'nub'+'bins'='NUBBINS'

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

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