The monster is offstage, or blurred, or not described. Examples could be Smudge's pet in the Beano which is covered in mud so you can't tell what it is, and the monsters in baskets as seen on the UK sketch show Marty (though they were in the Book of Revelation).
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.