Lets boy off with fine, producing rules and regulations in writing? (9)

I believe the answer is:

stylebook

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'rules and regulations in writing?' is the definition.
I can't judge whether this definition defines the answer.

'lets boy off with fine' is the wordplay.
'off' indicates an anagram.
'with' means one lot of letters go next to another.
'fine' becomes 'ok' (synonyms).
'lets'+'boy'='letsboy'
'letsboy' is an anagram of 'stylebo'.
'stylebo'+'ok'='STYLEBOOK'

'producing' is the link.

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I've seen this clue in The Independent.

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