Possible Clues:

• One's due
• They may be civil or economic
• Entitlements of the two joined in marriage, say
• Legally granted principles due to person
• As for the first of 2 down, you deserve to have them
• They should balance responsibilities
• Titles, perhaps mysteries, so they say
• Group of 10 in a famous bill
• They cannot be left of what one is due
• Entitlements and just claims