Answer:

GREEN

AnswerCrossword Clue
GREENEnvironmentally correct
GREENChip-shot destination
GREENRalph Nader's party
GREENUnripe
GREENTee shot's target
GREENTiger's target
GREENFlag locale
GREENUntested
GREENPutting place
GREENEnvious, in a way
GREENInexperienced
GREENPlace for putting
GREENEnvironmentalist
GREENPlace for putting balls
GREENColor of Libya's flag
GREENRaw
GREENGolfer's target
GREENTraffic light color
GREENUninitiated
GREENEnvironmentally friendly
GREENWet behind the ears
GREEN"It's not easy bein' ..": Kermit's lament
GREENEco-friendly
GREENAppropriate way to go today, which can precede the answers to starred clues
GREEN"Go" color
GREENMarch 17th color
GREENKermit's color
GREENColor of jacket given to the Masters winner
GREENEnvironmentally sound
GREENColor of the jacket worn by the Masters winner
GREENEco-conscious
GREENThe color of money
GREENOlive or kelly
GREENGumby's color
GREENColor for the 17th
GREENLike a rookie
GREENNot experienced
GREENDough color?
GREENIt has a hole with a pin in it
GREENLike the Grinch