Explosive Gas Mixture in Coal Mines

This page is the CodyCross answer for the clue below from Performing Arts, Group 899, Puzzle 4 (Round of Applause).

Question is: Explosive Gas Mixture in Coal Mines

and the answer is: FIREDAMP

Word Meaning:

FIREDAMP — (mining) A flammable gas (mostly methane) found in coal mines; forms an explosive mixture with air.

Definitions from Wiktionary.