Heavy hitters are individuals or groups that have a great deal of influence or power. The term can be used to describe people in politics, business, or other fields. The crossword solutions for the term 'heavy hitters' include 'SLEDGE' (6 letters), 'clouters' (8 letters), 'MAULS' (5 letters), 'sledges' (7 letters), and 'thumpers' (8 letters). These words all refer to tools or weapons that are used to exert force or power.