decluttering means the act or process of removing clutter; tidying, removing unwanted or messy items from a given place.
Etymology
From de- + clutter + -ing. Compare declutter (attested later).
noun
- The act or process of removing clutter; tidying, removing unwanted or messy items from a given place.“The decluttering trend is nothing new, and has much to recommend it, but every week now seems to bring a fresh example of what ascetics might once have called the renunciation of possessions […].”