Related Clues:

• First word in "Auld Lang Syne"
• Should, had better
• Has a duty (to do)
• "You ___ to know that"
• Is morally obliged (to)
• ''You ___ to know better!''
• 'There ___ to be a law!'
• ''You __ to know better''
• Indicator of probability searched for, initially lost
• Should do anything we’re told
• Unnamed duck could be anything at all
• Has a duty
• Has an obligation to (do)
• Cycling hard? This suggests duty or obligation, perhaps
• ___ to (should)