Possible Clues:

• It may be held or nursed
• It can be nursed
• Reg dug about for old cause of a quarrel
• Animosity in good Dickens character
• Feeling of enmity or envy
• Resentful feeling
• Long-standing feeling of resentment
• What you may hold for years
• Feeling of resentment associated with the last words of the starred answers
• It may be held and nursed