will probably net better responses in the detailing section, but anyway.... clearbra's can be polished so i would start with ScratchX and foam pad.
i personally like to use those kiwi shoe polishing foam pads (applicators) for small scuffs. otherwise i resort to my 3" random orbital. you can buy these at your local convenience store or walmart, target, etc probably.
Amazon.com: Kiwi Select Polish Applicators, 2 Each: Health & Personal Care
anyway, GL with your repair. at least clearbra's can be re-applied