Sir Nick Clegg, the former Liberal Democrat leader, has said the current university tuition fee system is a "mess". Pressed on his time in government when - while deputy prime minister - higher tuition fees were introduced, Sir Nick said he would take any criticism of his role "on the chin". But he told the BBC he was not responsible for changes made afterwards, including the repeated freezing of the graduate repayment threshold, which he said contributed to a system that was now "deeply unfair". Student loans issued between September 2012 and July 2023 were all under Plan 2, which have been heavily criticised this year over high interest rates. The repayment thresholds for Plan 2 loans will be frozen at £29,385 between 2027 and 2030. This means more graduates will start repaying their loans sooner after starting work. Amira Campbell, president of the National Union of Students (NUS), described the move as "breaking a contract" and creating "a massive issue of trust".…