Revisit the declawing again, maybe discuss it with the vet. Lets face, it you and the cat have to live together and the truth is, you are more important then a cat and that comes from someone with four cats. I would not declaw a cat that went in and out but if it is just a house cat, it is no problem, the cat will never know the difference. Your next alternative is, you have to carefully maintain the cats claws and don't let them get where they can be so destructive, that is what I do. All the cats get their nails clipped and filed as well as good combing. I also use a thing called "Furminator" to remover the hair that is in the coat and can get all over the house and on your pool table.
http://www.furminator.com/?gclid=COunhciZ_6sCFY5V7Aod8WMPvw
It is your responsibility to make a situation where you and the cat can both be happy. Just covering up the table is the easy part.
One of my cats is sleeping right here on the corner of my desk right now and I am sure one is probably on the covered pool table. They like the cool feeling of the slate I think.
What kind of cat is it by the way? My cats are all former rescues and mixed but one is an Abyssinian.