Confuse theologian introduced to beer (5)

I believe the answer is:

addle

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'confuse' is the definition.
(I know that addle is a kind of confuse)

I don't understand the remainder of the clue.

(Other definitions for addle that I've seen before include "(Of eggs) turn bad" , "Make rotten" , "Confuse; go off" , "Confuse; become rotten" , "Rot" .)

I've seen this clue in The Sun and The Times.

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