Mischievous Elf
Puzzle 5 of Hawaii Pack
Question is: Mischievous Elf
and the answer is: GOBLIN
Word Meaning:
GOBLIN — Traditionally, a supernatural being of folklore, typically small and grotesque or misshapen, that commonly haunts dark places, often mischievous or malevolent; a type of evil elf, sprite, or demon.
Definitions from Wiktionary.