Can I delete information off my yahoo profile and start over?

I don't want to delete my screenname and everything because I've had this name for ever. But for some reason, my profile has become associated with some questionable areas of the yahoo interests section. I keep getting IM's from weirdos and stuff. Anyway, I just want to know if there is a way I can clear everything from my main profile and start over, again, without totally deleting my screenname and all.