The phrase "a straightforward plea" is correct and usable in written English.
It can be used when describing a request or appeal that is clear and direct, without any ambiguity.
Example: "The charity made a straightforward plea for donations to support the victims of the disaster."
Alternatives: "a clear request" or "an earnest appeal".
Ratko Mladic, the former Bosnian Serb military commander was removed from the courthouse in The Hague yesterday for repeatedly interrupting the judge with complaints about his treatment, during what should have been a straightforward plea hearing.
Fraser McAlpine of BBC Music wrote that "Somebody to Love is a straightforward plea for a soul mate; it says something we've all felt".
Fraser McAlpine from BBC Chart Blog felt the "elegiac" and sad-toned chorus "makes the verses transform from a straightforward plea for dancefloor action into what sounds like a demand that everyone join Kylie for one last dance before things become spoiled forever".
Three months after its decision in Mr. Thompson's case, the Supreme Court agreed to hear Mr. Smith's case, which, unlike the Thompson case, is a rather straightforward plea for a new trial.
As he goes to leave, he makes an untypically straightforward plea.
"When people know there's footage of whatever has taken place we get a straightforward guilty plea because they can see themselves on the camera.
At an arraignment in March, a judge entered a straightforward not guilty plea on Mr. Holmes's behalf after his lawyers said they were not ready to enter a plea.
After the father of the Commons, 84-year-old Sir Edward Heath, had rejected pleas for a straightforward ballot to choose from the 12 contenders, it took more than six hours of cumbersome voting to complete the election as even no-hopers took their turn - to the dismay of Westminster modernisers.
The United States attorney for the Eastern District of California, Benjamin B. Wagner, a 2009 Obama appointee, wants Mr. Davies to agree to a plea that includes a mandatory minimum of five years in prison, calling the case a straightforward prosecution of "one of the most significant commercial marijuana traffickers to be prosecuted in this district".
A straightforward sandwich cheddar.
