My son had a tie. I recommend going to a pediatric dentist to have it checked out before you do anything. We made the mistake of listening to a pediatrician who recommended letting her clip it and provided no information about post-op care. Unfortunately, all this led to was the clipped portions reattaching and creating scar tissue. This made the subsequent lasering more difficult and the recovery slower. It was a dumb decision in hindsight, but this was three days post-birth and we were sleep deprived and clueless.
I hesitate to share this next part because I don't want to dissuade you from doing what you need to do, but the post-op care is brutal. You need the clipped portions to heal without reattaching to one another. For us, this meant having to forcibly push his tongue up and hold it for a few seconds seconds or so to essentially reopen the wound and then massage the wound for a few seconds. We had to do this every four hours for a few weeks. It was truly gut wrenching. You can find photos and videos of the process by searching tongue tie post-op, but, honestly, it may be better if you don't see it before you're forced to do it.