Guess there's no way to email you directly from this forum, hope you get this.
Pay a visit your local cosmetics/personal hygene counter. You are looking for a nail buffer, which is something similar in shape to an emery board but is definitely NOT an emery board. Rather than a brown color with noticable grit, a buffer has blue, red, white or gray surfaces that do not appear gritty. Also buffers are thick with a foam core. The best for modeling have 2 colors per side. These indicate increasingly fine grades.
The glue has actually pitted the surface of your clear part. Start with the coarsest grade to work out the pits. You will have a scratched but uniform surface. Then use progressively finer grades until you have restored the surface to a gloss. Harder to explain than to do. Practice on a fingernail to get the hang of it!
Good luck with the project.