Highly complex network of interconnected passages (9)

I believe the answer is:

labyrinth

(Other definitions for labyrinth that I've seen before include "Complex network of passages" , "Get lost here" , "part of hearing" , "It makes access difficult" , "perplexing route" .)

I've seen this clue in The Irish Times.

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.