Narrow, Widening Crack in a Rock
This page is the CodyCross answer for the clue below from TV Station, Group 603, Puzzle 1 (Title Sequence).
Question is: Narrow, Widening Crack in a Rock
and the answer is: FISSURE
Word Meaning:
FISSURE — A long, narrow crack or opening made by breaking or splitting, especially in rock or earth.
Definitions from Wiktionary.