Crossword Genius

Is short with images - 80 say (5,2)

Ross

I believe the answer is:

snaps at

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

'is' is the definition.
Although both the answer and definition are verbs in their -s form, I don't understand how they can define each other.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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