Cryptic crossword clue
Wine drinking, key to religious doctrine 5

The most common and most likely answer to this crossword clue is the 5 letter word TENET

T
E
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E
T


Buddy explains!

The straight part
We know that "religious doctrine" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case religious doctrine = tenet.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does TENET mean?

TENET noun
  1. An opinion, belief, or principle that is held as absolute truth by someone or especially an organization.

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