Definition: A "special agent" is a person who has a specific job or task, usually in an investigative or law enforcement role. Their authority is limited to the particular duties they are assigned, which often involves dealing with special situations, such as crimes or security issues.
In a more advanced context, "special agent" can refer to roles within federal agencies, such as the FBI or CIA, where they handle complex investigations and operations.
While there are no specific idioms or phrasal verbs directly related to "special agent," the term "undercover" (as in "undercover agent") is often used to describe secretive operations where agents work discreetly.
A "special agent" is an important role, often related to law enforcement, where a person is given specific tasks to investigate or solve issues.