The term 'GOES FOR A RUN' can be broken down into two crossword solutions: BATS and JOGS. BATS is a four letter word that refers to the flying mammal, which is known for its use of echolocation to navigate in the dark. JOGS is also a four letter word that refers to running at a slow or leisurely pace, usually for exercise or recreation. Together, these two words describe an activity that involves running at a slow pace, which is often done for exercise or recreation.