'Clear' in the Bible

My brothers, some members of Chloe's family have made it clear to me that there are quarrels among you.

For my conscience is clear, but that does not vindicate me. It is the Lord who examines me.

That is the way I run, with a clear goal in mind. That is the way I fight, not like someone shadow boxing.

For example, if a bugle doesn't sound a clear call, who will get ready for battle?