The crossword solution for the term 'PINKER, PERHAPS' is 'RARER', which is a five-letter word. Steven Pinker is a Canadian-American cognitive psychologist, linguist, and popular science author. He is known for his advocacy of evolutionary psychology and the computational theory of mind. His work has been described as having a strong emphasis on the biological basis of language and cognition. As such, it could be said that Pinker is a 'rarer' type of scientist.