Troublesome priests don't give in (7)

I believe the answer is:

persist

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'troublesome priests don't give in' is the definition.
I can't judge whether this definition defines the answer.

'troublesome priests' is the wordplay.
'troublesome' indicates anagramming the letters.
'priests' with letters rearranged gives 'PERSIST'.

Can you help me to learn more?

(Other definitions for persist that I've seen before include "Continue to exist" , "Endure" , "Keep trying" , "Go on and on" , "Continue firmly or obstinately" .)

I've seen this clue in The Irish Independent.

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