Duck farmer initially seizes each person found stealing (3,4)

I believe the answer is:

tea leaf

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'person found stealing' is the definition.
I can't judge whether this definition defines the answer.

'duck farmer initially seizes each' is the wordplay.
'duck' becomes 'teal' (teal is a type of duck).
'initially' suggests taking the first letters.
'seizes' indicates putting letters inside.
'each' becomes 'ea' (abbreviation).
The initial letter of 'farmer' is 'f'.
'teal'+'f'='tealf'
'tealf' placed around 'ea' is 'TEA-LEAF'.

Can you help me to learn more?

(Other definitions for tea leaf that I've seen before include "Darjeeling?" , "one exhibiting a fortune?" , "ending up in hot water" , "might be spotted in China" , "Cockney crook" .)

I've seen this clue in The Telegraph.

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