An antlered beast is a large mammal with horns or antlers, and the crossword solutions for this term are ELK (3 letters), MOOSE (5 letters), HART (4 letters), DEER (4 letters), STAG (4 letters), and ELKS (4 letters). ELK, MOOSE, HART, DEER, and STAG are all members of the Cervidae family, which includes species such as reindeer, caribou, and mule DEER. ELK are the largest species in the family, while MOOSE are the tallest. HART and STAG are both terms used to refer to male DEER, while elks is an alternate spelling of ELK.