Related Clues:

• Inherent character
• First published work by 39-Down
• Disposition
• Kind
• Mother that can't be fooled
• Quality
• Character
• Essence
• Temperament
• See 52-Down
• '___ does nothing without purpose': Aristotle
• Mother of note
• World Wildlife Fund concern
• Kind of walk
• Word with 'second' or 'laws of'