The most common and most likely answer to this crossword clue is the 6 letter word GOBLET
I've seen this crossword clue in The Sunday Telegraph
G
O
B
L
E
T
More clues leading to the result GOBLET
- Glass obtained with bulges occasionally in it
- Try hitting net after start of Badminton Cup
- Little mouth, perhaps, drinking glass
- Travel by punt clutching stem of tall glass
- Drinking vessel allowed to touch mouth
- Vessel to travel back initially having met obstruction
- Try and gamble about conclusion of final in cup
- Drinker maybe rudely allowed to bring glass
- Go and complain having dropped a glass
- Big cup for small mouth?
Buddy explains!

The straight part
We know that "glass" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case glass = goblet.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 GOBLET mean?
GOBLET noun- A drinking vessel with a foot and stem.