Person to keep an eye on for future success Crossword Clue

 The answer to the person to keep an eye on for future success crossword clue is UP-AND-COMER.

This clue is referring to someone who is young and has the potential to be successful in the future. The word "up-and-comer" is often used to describe someone who is rising in their field or who is making a name for themselves.

Here are some examples of people who could be considered up-and-comers:

A young actor who is getting rave reviews for their work on Broadway.

A scientist who has made a breakthrough discovery.

A politician who is running for office for the first time.

A musician who is releasing their first album.

I hope this helps!