The thing about Patches the clown was the 'pointy' makeup, which is avoided like the plague by real clowns, specifically because it's so creepy. Gacy wore it even when he was doing fetes and various other community things for kids.
Ligotti has had a few beckett moments IIRC.

Going back to my comment about the creepy horror of feeling a lack of knowledge... There is a Ligotti story that describes in detail a clown that never quite turns around to fully face the narrator. I thought that was one of his best.
Ligotti has had a few beckett moments IIRC.