No pottery income redirected, without which there may be some 'accidents'! (10,5)

I believe the answer is:

protection money

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'without which there may be some accidents' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'no pottery income redirected' is the wordplay.
'redirected' is an anagram indicator.
'no'+'pottery'+'income'='nopotteryincome'
'nopotteryincome' anagrammed gives 'PROTECTION MONEY'.

Can you help me to learn more?

(Another definition for protection money that I've seen is " What's extorted by gangsters".)

I've seen this clue in The Guardian.

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