Comprehensive resource for understanding and mastering English idioms
The idiom "clear the air" means to remove any misunderstandings, conflicts or negative feelings that exist between people or groups. It can also mean to open up a conversation or to address a difficult issue directly.
The origin of the idiom is uncertain, but it has been in use since at least the 16th century. One theory suggests that it comes from the practice of blowing smoke into a room to cleanse it of bad smells or negative energy. Another theory suggests that it comes from the practice of clearing the ground before planting crops, which symbolizes removing obstacles or difficulties.