Narrow fissure or crack (7)

I believe the answer is:

crevice

This clue is a double definition.

'narrow fissure' is the first definition.
(I've seen this before)

'crack' is the second definition.
(synonyms)

(Other definitions for crevice that I've seen before include "Crack or fissure." , "Opening" , "Narrow rock fissure" , "Cleft, fissure" , "Split" .)

I've seen this clue in The Daily Mail and The Mirror.

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.