04:00Gemma CairneyIzzie Clarke sits in for GemmaBBC Radio 1 Duration: 2 hours, 30 minutes Mon 6th Apr 2015, 04:00 on BBC Radio 1 EnglandIzzie Clarke, the 2014 Student Radio Awards Best Female DJ, sits in for Gemma Cairney.GenresMusicPop & ChartEntertainmentBrandGemma Cairney Source: BBC Online