A deerstalker is a type of HAT, typically made of tweed or wool, with a brim and two peaks at the front. It is often associated with Sherlock Holmes, who wore one in many of his stories. The crossword solutions for the term 'deerstalker, e.g.' are CAP (3 letters) and HAT (3 letters). A CAP is a type of headwear that covers the top, back, and sides of the head, but not the face. It is usually made of cloth or leather and is often used as a form of protection from the sun or cold.