This one is just asking to be retro-claimed. Even as I type, I'm sure that there are whirling red warning lights and sirens going off in Webbo's secret underground bunker, an encoded message coming through on the ticker tape warning him that some young scrote is about to claim something that got done every night after work in the 70s. But I've checked UKC, the Dunning guide, the old Yorkshire Grit definitive, the new definitive, 20 odd crags, and peakbouldering.info (and thus yorkshiregrit.com as was) and there is not so much as a whisper of this being done.
It's good climbing, it's entirely independent of Slapstick Arete (if you don't use the big fat handhold on the left, which most people don't nowadays. As such, it's well worth doing.
Climb the thin arete left of Slapstick Arete via a dynamic move. The top is very green but you catch a crenellated finger jug so it doesn't make any difference.
https://www.instagram.com/p/BhUFnxcj-cp/