The term DE ___, Hernando Explorer is referring to the Spanish explorer Hernando Cortes. His surname can be found in the crossword solutions Cortes (6 letters) and CORTEZ (6 letters). CASA (4 letters) is the Spanish word for house, which could be a reference to the fact that Cortes was born into a noble family in Medellin, Spain. Tango (6 letters) is a type of dance, which could be a reference to the fact that Cortes was known for his skill in dancing.