Possible Clues:

• Mingle
• Blend together
• Blend
• Mingle together
• Current expression in Northern Ireland: 'Vote to amalgamate'
• Get together when graduate finals are often held?
• Get them together in term nine
• When school is open football team's back to get together
• Combine when lessons are held with raising of football team?
• Get together to lay it to rest and socialise