Ichabod Crane’s Old Nag in Sleepy Hollow
Puzzle 2 of ABBA Easy Pack
Question is: Ichabod Crane’s Old Nag in Sleepy Hollow
and the answer is: GUNPOWDER
Word Meaning:
GUNPOWDER — An explosive mixture of saltpetre (potassium nitrate), charcoal and sulfur; formerly used in gunnery but now mostly used in fireworks.
Definitions from Wiktionary.