Related Clues:

• Make 19 20 with neat organisation
• Give rough figure for drinks being promoted
• Periodic gathering of milk producers perhaps
• Assembling to have several drinks at Oxford?
• Group together make a score of nineteen, for example
• Series of calls ahead for collection of data
• Big name in weed killers
• In summary, slightly exaggerate what's beside the point
• Collect our mysterious new leader from northern party
• Big job for a cowboy
• Simplify calculation by increasing number in assembly
• Make conveniently bigger summary
• Gather together in circle at college
• Summary arrest
• Slightly overestimate assembly