Oct 20 (Reuters) - Gold prices inched lower early on Tuesday as caution set in ahead of the deadline to reach an agreement on a new U.S. coronavirus stimulus, diminishing the metal's appeal of being a hedge against inflation. * Pelosi hopes that by the end of Tuesday there will be "clarity" on whether a coronavirus stimulus bill can be passed before the Nov. 3 elections, Hammill wrote. * The European Central Bank will maintain an accommodative policy in response to the ongoing coronavirus crisis, ECB President Christine Lagarde said.