Wax Light Source, Handy During Blackouts
Puzzle 13 of Solving a Mystery Easy Pack
Question is: Wax Light Source, Handy During Blackouts
and the answer is: CANDLE
Word Meaning:
CANDLE — A light source consisting of a wick embedded in a solid, flammable substance such as wax, tallow, or paraffin.
Definitions from Wiktionary.