Crossword Genius

School board?

Ross

I believe the answer is:

seesaw

(Other definitions for seesaw that I've seen before include "Up-and-down children's game with plank on barrel" , "Plank children play on" , "swing" , "youngsters' game" , "Child's game with plank on barrel" .)

I've seen this clue in The New York Times.
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