Great fiddler, unbeliever in Italy (8)

I believe the answer is:

paganini

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'great fiddler' is the definition.
'paganini' can be an answer for 'fiddler' (I have seen 'Old fiddler' mean 'paganini' so perhaps 'fiddler' could also mean 'paganini'). I'm not sure about the 'great' bit.

'unbeliever in italy' is the wordplay.
'unbeliever' becomes 'pagan' (I've seen this before).
'italy' becomes 'i'.
'pagan'+'in'+'i'='PAGANINI'

Can you help me to learn more?

(Other definitions for paganini that I've seen before include "Old bower" , "Devilish performer" , "C19 violin virtuoso" , "Famous Italian violinist" , "Italian barman" .)

I've seen this clue in The Telegraph.

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