Related Clues:

• Environmentally-friendly form of energy running out early
• Living, he wrote nothing
• Party label one may be putting on
• Naive conservationist
• Seal of approval from politician without consequence
• Given permission to proceed, environmentalist goes on to land
• Unripe; envious
• Bushy associate, recalling his appearance?
• Born yesterday at the match? That's something to go on!
• Verdant; naïve
• A goer? He gets naughty girl involved with kinky gent
• Colour of emeralds
• New information about is coming through
• Ecologically correct
• Grass colour