I do not believe this is Clavigerum. I am almost certain that this is a very mature specimen of Anthurium pedatum. Anthurium pedatum is not widely grown in collections, and the juvenile form and mature form are quite different looking. I have one friend who has pedatum. It matches your photographs and also photographs online.
If I were looking at it at first glance, I would say that it could be clavigerum. But the infructenscnces in your photographs are not correct for that plant (nor is the morphology of the leaves). Clavigerum has fruit that are purple not red, and they never cover the entire infructescence. They are only found at the base.
I grow clavigerum and pedatoradiatum, which is closely allied with pedatum, but I do not own pedatum (darn it)
