Larks Casper devised (6)

I believe the answer is:

capers

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'larks' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe there's a link between them I don't understand?

'casper devised' is the wordplay.
'devised' indicates an anagram.
'casper' is an anagram of 'CAPERS'.

Can you help me to learn more?

(Other definitions for capers that I've seen before include "Skips, dances" , "Light-hearted fun" , "Antics and pickled flower-buds" , "Jumps, runs about playfully" , "Pickled flower buds used in sauces" .)

I've seen this clue in The Sun.

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