The term 'play the part of' can be summarized by two crossword solutions: 'ENACT' and 'actas'. To 'ENACT' something means to put it into action, usually in a theatrical or dramatic context. It is often used to describe the process of passing a law or other official document. To 'actas' something is to take on the role of that thing, usually in a theatrical or dramatic context. It is often used to describe an actor taking on the role of a character in a play or movie.