An offensive move is an ATTACK that is intended to gain an advantage over an opponent. It is a strategy used in many sports, such as football and basketball, as well as in military tactics. The term 'offensive move' can also be used to describe any kind of aggressive action taken by one person or group against another. In the context of a crossword puzzle, the term 'ATTACK' is typically used to describe a six-letter word that fits the clue.