BELTER

Belter

In Larry Niven's fictional Known Space universe, a Belter refers to a resident of the Asteroid Belt around Sol, sometimes known as the Sol Belt to differentiate it from Alpha Centauri's Serpent Swarm.

The above text is a snippet from Wikipedia: Belter (Niven)
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!