Related Clues:
- Central part
- Heart or soul
- Importance
- Essential element
- Tropical helmet material
- Crux of the matter
- Most essential part
- Helmet type
- Helmet material in the tropics
- Helmet type for a safari leader
- Rambler's lack
- Tropical helmet material, perhaps
- __ helmet: safari wear
- Safari helmet material, perhaps
- Vital part