Alexander McQueen, Idiot Box, Format 15: this week’s new exhibitions

From an Alexander McQueen retrospective in London to the Format 15 photography festival in Derby, Skye Sherwin and Robert Clark find out what’s happening in art around the countryAlthough a maestro of traditional tailoring, Alexander McQueen dedicated his life to challenging the fashion norm. The designer’s career survey, Savage Beauty – one of New York’s Metropolitan Museum Of Art’s most-visited shows ever, now getting an eagerly awaited five-month run in London – demonstrates his r