Number of England fans, tolerance-wise, needing reform (5,8)

I believe the answer is:

sweet caroline

'number of england fans' is the definition.
(song sung by England soccer fans)

'tolerance-wise needing reform' is the wordplay.
'needing reform' is an anagram indicator.
'tolerance'+'wise'='tolerancewise'
'tolerancewise' anagrammed gives 'SWEET CAROLINE'.

I've seen this clue in The Guardian.

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