Due to a bit of overenthusiastic wax oiling my little compressor's broken it's drive belt . I've 'Goggled' it but couldn't find a supplier.

Anybody know where to get a '307 PJ Flexonic' from?

Cheers
Rich

Try your local bearing supplier, lots of them do shafts, pulleys and drive belts. I'm sure they'd be able to match it up.