FAMILY STYLE: Looking summery and relaxed in an ecru suit, newly-single George Clooney kept his parents company during a candlelit dinner al fresco Monday at Villa D’Este. Rather than “fishbowl” the night away surrounded by guests in the main dining room, the actor retreated beneath the century-old trees to The Grill, the less-trafficked, more informal eatery at the Lake Como resort. While his son skipped the necktie, Nick Clooney stuck to a suit-and-tie dress code, and his wife Nina wore a red skirt and jacket. Huddled in conversation, the family dressed their dinner table with simple dishes like fresh mozzarella and parma ham, according to one observer. The Clooney trio must be fans of the lakefront property, since they dined there last summer with Stacy Keibler, Channing Tatum and his wife Jenna Dewan. While Clooney’s next film “Gravity” will open the Venice Film Festival, his ex Keibler is now hostiing Lifetime’s “Supermarket Superstar.” She has also sworn off gluten, soy, dairy and sugar, which doesn’t exactly make way for veal Milanese.