Related Clues:

• It's all on top, but the end will do for 17 across
• Preferable for the teetotaller to have around of beer
• Always on the top, never on the bottom
• To get a non-drinker into the beer is an improvement
• Around a teetotaller drink is preferred
• Seems it's preferable for one to be gambolling here, by the sound of it
• Never at the bottom, always on the top (6)
• It's an improvement so to get a non-drinker in the drink
• Always on top, never in the end
• Always on the top, never at the end
• It does the teetotaller more good to have beer around
• It's preferable to have a drink round a teetotaller
• It would be preferable not to drink if there was beer around
• A teetotaller is improved if there's drink around
• It's an improvement to be this sort of a gambler, perhaps