Crossword Genius

In the Vatican, one old priest bores, not having changed (9)

Ross

I believe the answer is:

unadapted

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'in the vatican one old priest bores' is the definition.
I can't tell whether this definition defines the answer.

'not having changed' is the wordplay.
'not' becomes 'un' (prefix meaning 'not').
'having' means one lot of letters go next to another.
'changed' becomes 'adapted' (adapting is a kind of changing).
'un'+'adapted'='UNADAPTED'

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