The crossword solutions for the term 'Hefty Competitor' are GLAD and ZLOC. GLAD stands for 'Giant Labor-saving Appliances Division' which is a division of the Whirlpool Corporation that produces large appliances such as refrigerators, washing machines, and dishwashers. ZLOC stands for 'Zanussi Logistics and Operations Center' which is a logistics center in Italy that is owned by the Electrolux Group. Both companies are major competitors in the appliance industry and produce a variety of products that compete with each other.