Translation of clipper in Spanish

I would like to give you a proofreader's project. Proof reading sample sentences that were entered into the dictionary by our users. It is a very tough project and needs a lot of discipline and patience.
You have to be careful when you go on summer vacation. There are many dangers but the most dangerous one is the sun itself, because if you're not careful it may harm you. People underestimate the rays.
I studied art in Germany. I would now like to learn Spanish. Can you teach me a little Spanish? Many greetings from Ukraine. I live in a small town, near Krim, close to the Black Sea.