I attended Clark as an undergrad about 11 years ago and lived off-campus on Florence, in the direction you’re speaking of. At that time I also worked off campus in the other direction, at a restaurant about a mile away. I didn’t have a car and would walk to and from work, often late at night. Was it the smartest thing I ever did? No. Did anything ever happen to me? No. Honestly, as a female walking late at night, I kept my wits about me and never really had any safety concerns. I didn’t really see people out at that hour (I would usually walk home between 9-11pm), but I’m not sure if things have changed for the worse. I do know people who got mugged near/on campus late at night. With all that being said, Clark used to offer “escorts,” which included either people walking with you at night or a van driving you. I just did a quick Google and it looks like they still offer on-call transportation within a one-mile radius of campus: https://www.clarku.edu/transportation/clarkride/

I think you’ll be fine during the day. If you’re worried about at night, use the car service.

Edit: My apartment also felt safe. I lived in one of the triple deckers on the third floor. The only time our first-floor neighbors had an issue was when they left the door open and went next door to see friends; in that time they got robbed.