The term 'Swiss Hero' can be represented by the crossword solutions TELL (4 letters) and ELL (3 letters). The Swiss hero in question is William TELL, a legendary figure from Swiss folklore. He is best known for his heroic feat of shooting an apple off his son's head with a crossbow. This act of bravery is said to have sparked a rebellion against the Austrian Habsburgs, leading to the formation of the Swiss Confederation.