Leaving the EU's single market as part of any Brexit deal would do "untold damage" to the UK economy, Nick Clegg has told the Lib Dem conference. The former deputy prime minister, who is now the party's EU spokesman, said the single market was a UK creation that was vital for jobs and prosperity. Report by Bushellt. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn