I was considering today what makes a writer. The dictionary definitions are broad: "A person engaged in writing books, articles, stories, etc., esp. as an occupation or profession," or "a writer is a person who is able to write and has actually written something." (!)
The ancient roots of the word "writer" come with a much better range of meanings: to score, to cut, to tear. Now that sounds like the experience I know and love--and hate.
I am a scorer, a cutter, a tearer of words; I am a writer.