Sure a clematis would work in that area but just realize that removing a wisteria vine can be a multi-year project. Just when you think you have removed all the roots and vines, a new vine will sprout up in a nearby area. I would insure that the wisteria was gone before I planted a clematis there. A great variety with pinkish blooms is Betty Corning which does have a fragrance. You would have to take the time to train it to grow horizontally, but if you are up to it, it can be done.

Are wisteria that bad? Shame, I always wanted one.

Once the wisteria is gone, I'd also advise planting more than one clematis for longer bloom period, or contrast. Betty Corning is great, in that same color scheme and easy care (trim down each year) would include:

Comtesse d. Bouchaud
Margot Koster
Emilia Plater
Prince Charles
Pink Fantasy
Marmori

...all in the light purple/pink spectrum and widely available, I believe.

Michael, wisteria can be an issue depending on the variety you plant. I had it at two previous houses and it just required pruning to keep it in control. Its vines can get rather large and can bend and splinter wood with age. The other issue are the runners that can pop up in various other parts of the yard far from the parent plant. Again, whether this happens depends on the variety that you plant. The only reason that I don't have it at my current house is that I did have two plants which were trained as shrubs but they always developed buds too early which were zapped by early frosts. I figured if I am not going to get the main spring flush of blooms why bother. They were summarily removed but I still occasionally find a vine popping up that I either try to remove by digging it out or killing it with roundup.

Thanks, everyone. That's helpful advice! So far this spring no signs of the wisteria re-emerging, but I'll wait and see what happens.