Not Cathe here, but to me, clean eating is eating lots of fresh fruits and veggies, complex carbohydrates, and lean protein and avoiding simple carbohydrates, processed sugars and high fat foods.
Here's a quote from Cathe on another thread ("dimples"....
"clean eating... keep your system free of processed and high sodium or starch based foods which many times contribute to the dimpling effect. Also, drink lots of water to keep your system cleansed and flushed. Good Luck!"