scenesetter
Etymology
From scene + setter.
scenesetter means One who, or that which, sets the scene. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- One who, or that which, sets the scene.“To be pragmatically determined, it must be the case that the expression does not contribute new information to the structure of the discourse except as an unremarkable scenesetter.”