Limit or hold back; keep within a small range (9)

I believe the answer is:

constrain

(Other definitions for constrain that I've seen before include "Check" , "Lock up" , "Compel; constrict" , "Confine, limit" , "Force" .)

I've seen this clue in the Sydney Morning Herald.

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.