Being difficult on purpose? (6)

I believe the answer is:

trying

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'being difficult' is the definition.
('trying' can be similar in meaning to 'difficult')

I don't understand the rest of the clue.

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(Other definitions for trying that I've seen before include "Sitting in judgement" , "Taxing" , "Making an effort, or straining one's patience" , "responsibility of the first Baron Jeffreys of Wem" , "Stressful" .)

I've seen this clue in the Evening Standard.

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