George Osborne always plays the role of the smiling conjurer who pulls the rabbit out of the hat and steals the scene with aplomb. In his 2015 spending review and autumn statement, the surprise announcement was that cuts to tax credit will not be as stringent as expected – although housing benefit claimers are the losers. Concealed within the chancellor’s hat are cuts of more than 50% in grants to local government and tense optimism about the growth, employment and pay forecasts on which everything depends.