Related Clues:

• Worrisome thing
• Heavy load
• Burden sometimes "on you"
• It's a chore
• Disagreeable obligation
• Agenda item
• Work to be done
• Something on the to-do list
• The heavens, to Atlas
• Unpleasant responsibility
• It's hard to bear
• Burden or responsibility
• Unpleasant necessity
• Unwelcome obligation
• Honey-do list item