Narrow Pathway Component of a Hearing Organ

This page is the CodyCross answer for the clue below from Train Travel, Group 709, Puzzle 2 (Thomas the Tank Engine).

Question is: Narrow Pathway Component of a Hearing Organ

and the answer is: EARCANAL

Word Meaning:

EAR CANAL — (anatomy) The tube or meatus running from the outer ear to the eardrum through which sound enters.

Definitions from Wiktionary.