The most common and most likely answer to this crossword clue is the 5 letter word SYRAH
I've seen this crossword clue in Financial Times
S
Y
R
A
H
More clues leading to the result SYRAH
Buddy explains!

The straight part
We know that "wine" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wine = syrah.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 SYRAH mean?
SYRAH noun- A dark-skinned variety of grape, used to produce red wines.
- A wine produced from this variety of grape.