The term 'KNIGHT STALKER' is a combination of two words, 'KNIGHT' and 'STALKER'. The word 'KNIGHT' refers to a mounted warrior in the service of a lord or king during the Middle Ages. The word 'STALKER' refers to someone who follows or watches someone else secretly. The crossword solution for this term is 'DRAGON', which is a mythical creature typically depicted as a large, powerful, and scaly reptile with wings. Dragons are often associated with strength, courage, and wisdom, and have been featured in many stories and legends throughout history.