2: Run, stand, or compete for an office or a position; 'Who's running for treasurer this year?'
5: The chemical element in the Periodic Table having the symbol 'Rn'
8: The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres.
9: Someone who works underwater.
12: A group of things of the same kind that belong together and are so used; a ______ of golf clubs.
15: To have produced a literary work.
20: She ______ to go see the doctor because she felt ill.
21: The room where you sleep.
22: To make a final choice.
24: Present tense of trod