Ensure you diet is perfect to get the most out of your clenbuterol cycle.
I personally don't think the macros matter so much until you reach single figures BF, most important is your total calories and how spaced apart your meals are.
Ensure breakfast is your largest meal of the day and make the remainder of your meals as close to equal numbers of calories as possible, with 5-6 evenly spaced meals depending on how many calories you have to budget.
Ensure your calories are:
(your weight in pounds) X 17 - 1000
You can also try not consuming carbohydrates 4 hrs before you sleep. Low fat cheese or eggs makes a good meal to have between this time.