Crossword Genius

Playful response to duplicity? (4)

Ross

I believe the answer is:

snap

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

This could be a double definition.

'playful response' is the first definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'duplicity?' is the second definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?

'to' acts as a link.

Can you help me to learn more?

(Other definitions for snap that I've seen before include "Picture" , "Sudden break" , "Break like informal photo" , "Quick photograph - impression" , "unexpected? > Same here!" .)

I've seen this clue in the Evening Standard.
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