The most common and most likely answer to this crossword clue is the 3 letter word RUM
R
U
M
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The straight part
We know that "Odd/drink" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case odd/drink = rum.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 RUM mean?
RUM noun- A distilled spirit derived from fermented cane sugar and molasses.
- A serving of rum.
- A kind or brand of rum.
- A queer or odd person or thing.
- A country parson.
- Any odd person or thing.
- Fine, excellent, valuable.
- Strange, peculiar.
- The card game rummy.