Complex sentence: In 2012, during the band's' Almost World Tour' guitarist Tom Searle noticed a mole on his leg which irritated him, he then had it checked out, cleared as non-cancerous and removed at the end of the tour once returning home.
Split into simpler sentences: In 2012, during the band's' Almost World Tour' guitarist Tom Searle noticed what he perceived to be a mole on his leg which irritated him. He proceeded to have it examined, where it was cleared as non-cancerous and removed at the end of the tour once returning home.