SIGNPOST

noun

1. A post bearing a sign that gives information on directions
2. (cryptic crosswords) A word or phrase within a clue that serves as an indicator, rather than being fodder.

verb

1. To install signposts on.
2. To direct (somebody) to services, resources, etc.
3. To indicate logical progress of a discourse using words or phrases such as now, right, to recap, to sum up, as I was saying, etc.