Living on or in the ground (11)

I believe the answer is:

terrestrial

(Other definitions for terrestrial that I've seen before include "Living on the ground" , "Relating to dry land" , "Not aquatic, arboreal, or aerial" , "Land-based" , "Relating to the earth" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.