speechifier

• "I think when you get to the point where you're just lecturing people, you're no longer an artist, you're just a speechifier," Schneiderman said. —  The Buffalo News: Home
• You know, I thought Sarah was the speechifier in this group.
• To dramatize the anger of many conservatives, one speechifier brandished a plastic sword piercing a hollow rubber Schwarzenegger head …. —  RedState
• I ain't no speechifier, you see, Junior"--with an embarrassed laugh at the boy's evident discontent--"I'll hev to depen' on you fur to say it--or maybe, write done ship-shape, some o' these notions o' mine, some day. —  The Little Gold Miners of the Sierras and Other Stories
• Rifle-shots and execrations were discharged together against the notorious enemy of their pinfolds; who nothing daunted, and nothing loath, let fly his own "speechifier," as he denominated his rifle, in return, accompanying the salute with divers yells and maledictions, in which latter he showed himself, to say the truth, infinitely superior to his antagonists. —  Nick of the Woods

Roget's II: The New Thesaurus