The term 'SECRET SOURCE' can be broken down into two crossword solutions: LEAKER (6 letters). A leaker is someone who discloses confidential information to the public without authorization. This type of behavior is often seen in politics, when a person with access to sensitive information chooses to share it with the media or other outlets. Leakers can also be found in the corporate world, when an employee reveals trade secrets or other proprietary information. In either case, the leaker is usually breaking the law and can face serious consequences.