Related Clues:

• Cup permitted near mouth
• Drinking vessel's small mouth?
• Glass with a stem
• Drinking-vessel speaker allowed
• For a little mouth, a big glass!
• Leave Britain with sanction to find Grail?
• Half-heartedly consume tea, say, in large cup
• Large drinking cup for a small mouth?
• Drinking receptacle allowed to touch mouth
• Fancy drinking glass
• Go and complain having dropped a glass
• Drinking vessel with a stem
• Fancy wineglass
• Piece of stemware
• Got over barman taking the last of the wine from chalice