The term 'Little Mischief-Maker' can be broken down into four crossword solutions: ELF (3 letters), RASCAL (6 letters), IMP (3 letters), and GOBLIN (6 letters). An ELF is a mythical creature often associated with Christmas, usually depicted as a small humanoid with pointed ears. A RASCAL is someone who behaves in a mischievous or naughty way. An IMP is a mischievous spirit or demon, often found in folklore. Finally, a GOBLIN is a small, grotesque creature from European folklore, typically described as mischievous and malicious. All of these terms can be used to describe someone who causes trouble or mischief.