Tidy away
Definition 1 of 1
Pro Tip 1/3Post-Activity
Use 'tidy away' after an activity to indicate clean-up time. 
Can you help me tidy away the craft supplies now?
Pro Tip 2/3Responsibility
'Tidy away' often suggests personal responsibility for one's belongings. 
Each student is expected to tidy away their own books.
Pro Tip 3/3Usage Context
More common in British English; American speakers might say 'clean up' instead. 
In the USA, people often don't use 'tidy away'.