A clue is a piece of information or evidence that helps you solve a mystery or understand something better. It's like a hint or a small puzzle piece that guides you towards finding the answer or figuring out what's going on. Full definition
People post on here without having read the article or having the first clue what they're commenting on. (religion.blogs.cnn.com)
When a hiring manager is looking for clues about what you would be like as a potential employee, he or she wants to hear the good and the bad. (platinumresumes.com)
I think of clues as external cues to our internal desires. (mindbodygreen.com)