The term 'manner of writing' can be summarized as a STYLE of writing. It is a way of expressing oneself through the written word, and can include elements such as grammar, punctuation, sentence structure, and word choice. The crossword solution for this term is 'STYLE, ' which is an appropriate description of the concept. STYLE is a broad term that encompasses many aspects of writing, and can be used to create a unique and recognizable voice.