The term 'Hellcat' is a slang term for a woman who is considered to be aggressive, domineering, and difficult to deal with. The crossword solutions for this term are 'HARPY' (5 letters), 'SHREW' (5 letters), and 'WITCH' (5 letters). All three of these words refer to a female figure in mythology or literature who is known for being fierce and powerful. A HARPY is a creature from Greek mythology with the body of a bird and the face of a woman. A SHREW is a small mammal known for its aggressive behavior. A WITCH is a figure from folklore who is believed to have magical powers. All three of these words can be used to describe a woman who is considered to be a 'Hellcat'.