Possible Clues:

• Drunk leaves before time, crossing garden unevenly
• A tea flavoured with bergamot
• Tea named after a British Prime Minister
• Blend of tea
• Oriental tea flavoured with bergamot
• Variety of tea flavoured with bergamot
• Leaves before the usual time without a bit of work in return
• Peer over uninteresting brew
• Tea Reg brewed is brought in before time
• Bergamot-flavour tea