I assume you mean a very wide stance? This would be a problem for many people in the deep squat position, as the groin flexibility required to catch the bar in an ATG front or overhead squat would require the lifter to be able to do the equivalent of an over-split. If you don't mean too wide, then this wouldn't be an issue but your knees would outside your hands and get in the way of the bar path.
However, some lifters have wider stances than others so a lot is up to personal preference and body proportions.
The most important part of the lift is not your stance though. If you can clean 160, no matter how much someone who cleans 140 tries, their stance can't allow them to clean more than you. Focus on lifting big and not so much on the stance.