Generally, the term "draw" means that you are advanced pay in anticipation of sales, and that if you don't make enough sales to meet the advanced pay, you are required to pay back the balance of the draw. Because that's what the term "draw" generally means, your former employer was probably correct in thinking that it shouldn't have to spell it out in the employment agreement. However, it would probably be wise to have a local attorney review the employment agreement to help you see what you might be up against should your former employer actually sue you for the balance.