An obsessive collector is someone who collects items to an excessive degree. This type of person is often referred to as a MAGPIE (6 letters) or HOARDER (7 letters). They are known for collecting items that may not have any real value, but they are unable to part with them due to their emotional attachment. This behavior can lead to clutter and disorganization in the home, and can even become a mental health issue if it becomes too extreme.