Christian unsettles nearby priest (12)

I believe the answer is:

presbyterian

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'christian' is the definition.
(Presbyterian is an example)

'unsettles nearby priest' is the wordplay.
'nearby priest' anagrams to 'PRESBYTERIAN'.
However, I'm unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for presbyterian that I've seen before include "Type of Christian -- best in prayer (anag)" , "church member" , "Religious type" , "Minister, perhaps" , "Form of church deriving from Calvin and Knox" .)

I've seen this clue in the Irish Times.

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