Possible Clues:

• Unripe; environmentalist
• Concerned for the environment
• Colour the usually safe learner knows well
• ''Go'' color
• Pot snooker ball first in lyricist's emblem of home?
• Reflections on choice confronting traveller who sees the light (In the red and -----)
• Untried
• Lacking experience (on the golf course?)
• Colour — fresh
• Not knowing much, information about to come through