The most common and most likely answer to this crossword clue is the 9 letter word WINEGLASS
I've seen this crossword clue in The Sunday Telegraph
W
I
N
E
G
L
A
S
S
More clues leading to the result WINEGLASS
- One may have champagne, say, to secure maiden coming round
- Wind was single flute, perhaps?
- Was single potty adequate receptacle for drinker?
- Red, perhaps, in this revolutionary Wales sign
- Get girl to imbibe say — from this?
- Vessel girl gets on . . . . Victory, say
- Gain the affection of, for example, young female tumbler's kin
Buddy explains!

The straight part
We know that "this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this = wineglass.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 WINEGLASS mean?
WINEGLASS noun- A glass vessel, normally with a stem, from which wine is drunk.