Cancer's zodiac symbol (4)

I believe the answer is:

crab

(Other definitions for crab that I've seen before include "Seashore creature" , "Sourpuss < to wreck" , "Ten-legged shellfish" , "accidentally caught in a row?" , "Marine crustacean (seen on 1 across?)" .)

I've seen this clue in the Universal.

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.