Someone with new or modern ideas.
any poet who belonged to the neoterics, a series of avant-garde Latin poets who wrote in the 1st century BC such as Catullus, Helvius Cinna, Publius Valerius Cato, Marcus Furius Bibaculus and Quintus Cornificius.
A modern author (especially as opposed to a classical writer).
Modern, new-fangled.
New; recent.
someone who starts a trend, or makes one more popular