One of three in a classic Chen Shou novel (7)

I believe the answer is:

kingdom

(Other definitions for kingdom that I've seen before include "Domain of royal ruler" , "Monarchical state" , "Republic? Not so!" , "big territory?" , "Major category of biological classification" .)

I've seen this clue in the USA Today.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.