There aren't going to be standard checklists for "intuitive", any more than there are checklists for "beautiful" or "stylish". It's a matter of experience, creativity, and knowledge. That said, there are a couple of things to do.
One thing you should do is know what the usual design elements are, where they are typically placed, how they look, and what they do, and not deviate from that without a good reason. There's no inherent reason Word should be intuitive, but word processors that generally do thing Word's way will seem to behave intuitively because it's what people expect.
Another thing is usability testing, with test groups of three to five people who haven't seen the app before. You need to try to impress on them that you want their complaints, that if they feel like they're not intelligent enough to "get" the app that it isn't their fault. Then pay attention to what they say and do.