@fify-- I think you can use it. But I don't know if it will cause any staining so if you have a clear plastic, you might want to think about that.
Clear cement is a useful glue though. From my experience, it can glue on mostly anything. The trick is to let it sit on the pieces for a minute before applying the pieces together. It holds on better that way.
Do you know the kind of glue that comes with those plastic model plane sets? That glue is also excellent for plastic on plastic. I have a gadget that I dropped and broke. I used this glue to put it back together and it's good as new.