Crossword Genius

Upset bowls crack (4)

Ross

I believe the answer is:

snap

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

This clue might be a double definition.

'upset bowls' is the first definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'crack' is the second definition.
(I know that crack can be written as snap)

Can you help me to learn more?

(Other definitions for snap that I've seen before include "on the spur of the moment" , "Break sharply like dried twig" , "21 [PHOTO]" , "Spell of cold weather and card game" , "Short spell" .)

I've seen this clue in The Telegraph.
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