Items on a to-do list
I believe the answer is:
tasks
'items on a to-do list' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tasks that I've seen before include "Chores, undertakings" , "Assignments" , "Jobs to be done" , "'Jobs, undertakings (5)'" , "Missions" .)