Obviously, but it's frowned upon to create a clan, and then attack specific people. It would be different if it wasn't you and several others deciding to punch me off corn. Even if you decided you wanted to be the ones to kill me, but waited til the late game it could have been fine.
Corn killing (with fists specificly) is just cheap. It's a cheap ploy to get kills and points without really trying. It's an abuse of the idea that you have numbers, and rather than doing what any honorable clan would do and simply attack me 1 on 1, or even more so, not arbitrarily choose to attack me.