The phrase "a new contributor" is correct and usable in written English.
You can use it when referring to someone who has recently joined a group or organization and is contributing to a project or effort.
Example: "We are excited to welcome Sarah as a new contributor to our research team."
Alternatives: "a recent contributor" or "a fresh contributor".
As the first Republican presidential primary debate was drawing near on 6 August, news site Mashable published some pre-debate analysis by a new contributor.
Standard Life, a new contributor to our poll, thinks a sell-off of the dollar is inevitable, and should boost the euro by the end of the year.
But the trend toward such high-priced tests, many of them not yet covered by insurance, is raising concerns in some quarters that diagnostics could become a new contributor to rising health care costs -- while increasing the gap between people who can afford good health care and those who cannot.
When I was first approached by The Huffington Post to become a new contributor to their Gay Voices section, I was immediately honored and simultaneously terrified.
Newsweek announced that Karl Rove, the controversial architect of the rise and fall of the modern G.O.P., will join its ranks as a new contributor to balance the recent hire of blogger Markos Moulitsas.
Recently, we discovered that human NGB is a new contributor of the signal transduction pathways that lead to E2-induced neuronal cell survival.
Leave the new contributor a positive, personalized message in the comment box.
It wheeled out its new contributor Sarah Palin, a possible Republican candidate in the 2012 presidential race, to attack Obama's "disconnect with the people".
Mr. Santorum was asked last week by Sandy Rios, a Fox News contributor hosting a program on American Family Radio, to explain why he was not winning more Catholic voters.
Indeed, Washington has a dubious history of second acts: Oliver North is now a Fox News contributor; Anthony Weiner ran a viable campaign for mayor; Rep. Scott DesJarlais (R-Tenn).
As recently as April, he was identified on Fox radio as a "Fox News contributor" and in a 2009 television clip, he called a senior politician "a pathological liar" while discussing CIA interrogation techniques.
