What is the meaning of Signpost?

A post bearing a sign that gives information on directions.

A word or phrase within a clue that serves as an indicator, rather than being fodder.

To install signposts on.

1. To direct (somebody) to services, resources, etc.
2. To signal (something) intentionally, as if with a signpost.

   To direct (somebody) to services, resources, etc.

   To signal (something) intentionally, as if with a signpost.

   To indicate (as the logical progress of a discourse) using words or phrases such as now, right, to recap, to sum up, as I was saying, etc.

   Source: wiktionary.org