If you spray canned it, I'm assuming you probably applied too much and caused some hazing (accessive buildup). That does happen with spray cans......not your fault. I would not advise stripping it. Get some acrylic flat coat and semi-gloss to airbrush. MM makes it. Mix a little (1:3 ratio) semi-gloss in with the flat and apply with airbrush. This may 'level out' the patches and lessen them a bit.
I use to use canned clear coat and had the same problems. Plus, if too much is applied it can cause the paint to wrinkle up. I would suggest only using airbrushed clear coats. Hope this helps.......
Andy