2. interfering echoes visible on a radar screen caused by reflection from objects other than the target. If you're like most, the image closely reflects Webster's first definition.
Clutter equals junk.
It's stuff that's all mixed up. Although valid, this illustration is not complete, as it depicts only what clutter is without considering what it does. It portrays clutter as passive, without consequence. Yet clutter does have repercussions. It impacts your life.