To tidy up is to put things back where they belong. Tidy up before bed, tidy up after yourself.
It is different from cleaning, since a room can be tidy and filthy at once. To tidy up is easier when everything has a place to go back to.
1phrasetidy upTo put things back where they belong.
“Give me ten minutes to tidy up before anybody arrives.”
tidy up is a phrase.
Practised in Cleaning & Housework