Make trouble in prison (4)

I believe the answer is:

stir

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This clue might be a double definition.

'make trouble' is the first definition.
'stir' can be an answer for 'trouble' (thesaurus). I'm not sure about the 'make' bit.

'prison' is the second definition.
(informal term for prison)

'in' is the link.

Can you help me to learn more?

(Other definitions for stir that I've seen before include "Commotion - prison" , "Act as an agitator" , "Whisk, agitate" , "Shake up" , "Prison (sl.); agitate" .)

I've seen this clue in The Sun.

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