Solution: Achieved green efficiency - NYT Crossword

The misdirection was strong on this one, for me at least. I imagined “Achieved green efficiency?” as meaning “gone solar” or something like that, even considering the question mark — some “green” technology, right? The game of golf, while availing a “green” as well, seems to be an example of inefficiency, famously “a good walk spoiled,” and infamously a wasteful assault on the environment. But I digress. When someone wastes no time and energy upon reaching the green, and “drains” the golf ball into the golf hole in one shot, they’ve ONE PUTTED. Thereby making room in their schedule for more golf.