Related Clues:

• Environmental - colour
• Concerned for the environment
• Ecologically beneficial
• Colour — fresh
• Proverbial constituent of our moon
• Roughrider jersy colour
• Eco-conscious
• Needing training
• Easy to take?
• Enviro-friendly
• Emerald or olive
• 'Go' signal
• Kermit's color
• Putting spot
• There's always a hole in one