Business tycoon's holdings (6)

I believe the answer is:

empire

(Other definitions for empire that I've seen before include "Number of countries ruled by one" , "Group of countries ruled by single supreme authority" , "Over which 23 down rules" , "Great power" , "French furniture style" .)

I've seen this clue in The Wall Street Journal.

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.