I happen to accidentally jam my charger in between a few moving objects and this was, unfortunately, the resut. Is this still safe to use? Are there any risks to continuing using assuming it will still charge my MacBook Pro?
There's no way to know from a simple visual examination.
You have three options...
[the cavalier] Try it & see what happens
[the circumspect] Take it to be tested
[the disposable income] Buy a new one & throw that one away.