Related Clues:

• Take in marriage
• See opus to support a cause
• Gather together as one
• Adopt or support, say a cause
• Adopt or support a cause
• Come together as allies or comrades
• Take up a cause
• Join together, become one
• Bring together, become one
• Join together, become allies
• Follow and promote a cause
• Become a single whole
• No longer a single, short day
• You get about one tune if you make this as one
• One E? Join with it