Usually if you think a problem is worth investigating, it's a topic that strongly interests you.  Making sure you're interested in your research will keep you from staring blankly at a computer screen, or doodling all over your notebook.  Don't be afraid to be creative!

Once you've decided on your topic, explain the issue clearly and comprehensively. You will complete this step during your research (for yourself) and in your writing (for your audience).

That's fine- the nature of research is all about building upon previous knowledge! Just make sure your topic is purposeful. That means that you're bringing new information up for discussion around the all-too-real academic conversations table. Originality and ingenuity will become fast friends when you input this factor into the overall evaluation of your topic.