Possible Clues:

• Mending
• Fixing
• Fixing coupling overlooked by engineers
• Getting married again after things patched up?
• Making amends, perhaps, by marrying once more
• A lot of a handyman's work
• Mending material that's been given exposure to atmosphere
• Going for servicing
• Getting married again might be putting things to rights
• A second marriage will be putting things right again