Rock cover generates complaint for Young Ones (6,3)

I believe the answer is:

cradle cap

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'complaint for young ones' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'rock cover' is the wordplay.
'rock' becomes 'cradle' (synonyms).
'cover' becomes 'cap' (capping is a kind of covering).
'cradle'+'cap'='CRADLE CAP'

'generates' is the link.

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I've seen this clue in The Guardian.

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