Crossword Genius

We hear anglers making cracks (8)

Ross

I believe the answer is:

fissures

I'm a little stuck... Click here to teach me more about this clue!

'cracks' is the definition.
(I know this)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for fissures that I've seen before include "Cracks" , "Narrow clefts" , "Long narrow openings" , "Chasms" .)

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.