Spiny, globular marine creature (3,6)

I believe the answer is:

sea urchin

(Other definitions for sea urchin that I've seen before include "Marine invertebrate with spikes" , "Marine creature with near-spherical spiny shell" , "Shelled marine creature" , "A problem for barefoot dabblers" , "Marine life form" .)

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.