The term 'Fairy-Tale FIEND' is a combination of two words, 'Fairy-Tale' and 'FIEND'. The word 'Fairy-Tale' refers to a traditional story featuring magical creatures such as fairies, elves, giants, and other mythical beings. The word 'FIEND' is a noun meaning an evil spirit or demon. Therefore, the crossword solution for the term 'Fairy-Tale FIEND' is 'OGRE', which is a large, monstrous, and often cruel creature from folklore.