Related Clues:

• Crucial element
• Mother of note
• World Wildlife Fund concern
• Intrinsic nature
• Nub
• Main idea
• Marrow
• Toiletry with a fragrant odor
• Nitty-gritty
• Condensed meaning
• Kind of walk
• Word with 'second' or 'laws of'
• Perfumer's extract
• Basic nature of a perfume
• Central part