Annoying noise when rolling

[gerkin]

Think this may be chain noise ,hardly any wear when tested at the rear sprocket only about 5mm daylight between sprocket and chain ,But loads of sideways movement and looks like there is 1mm of slight wear on the tyre edge wear chain may have been rubbing ,never had anything like this in 30 years of riding ,will fit new c&s and check back !
Cheers for all your replies