The term 'TACKLES MOGULS' can be solved by the crossword solution SKIS, which is a four letter word. Skiing is a popular winter sport in which participants use skis to travel down a snow-covered slope. Moguls are bumps or humps on a ski slope that are created by skiers as they turn. Tackling moguls requires a great deal of skill and agility, as skiers must navigate around the bumps while maintaining their speed and balance.