Work for kids in regularly cheeky, repeated scams (3,6,6)

I believe the answer is:

hey diddle diddle

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'work for kids' is the definition.
I know nothing about this answer so I can't judge whether this works.

'regularly cheeky repeated scams' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'repeated' says to double the letters.
'scams' becomes 'diddle' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The alternating letters of 'cheeky' are 'hey'.
'diddle' doubled is 'diddlediddle'.
'hey'+'diddlediddle'='HEY DIDDLE DIDDLE'

'in' is the link.

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I've seen this clue in The Independent.

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