FR: Ruth Rendell, Riz Ahmed, Edinburgh festival
b'Crime writer Ruth Rendell talks to Mark Lawson about her distinguished career; from the Edinburgh Festival comedian Reginald D Hunter explains how to upset the English and writer-performer Sarah Louise Young performs the story of Dame Julie Andrews; poet John Agard discusses the importance of learning verse by heart with Mark; and John Wilson meets The Clash and actor-rapper Riz Ahmed and examines the work of Edinburgh born artist Peter Doig.'