The most common and most likely answer to this crossword clue is the 7 letter word MOSELLE
I've seen this crossword clue in The Guardian
M
O
S
E
L
L
E
More clues leading to the result MOSELLE
- White part of gazelle, somewhat towards the top
- With Frenchwoman's support, doctors wine
- Maureen’s in Alsace, she makes wine …
- Some bananas left next to the French wine
- Second disappointment with English and German wine
- Wine trade in champagne curtailed
- Flash dealer contracted to produce wine
- Wine merchant failing to close, little time for opening?
- Wine‘s second retail outlet running short
- Measure in, drunkenly, some wine
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 = moselle.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.