Amal Clooney is re-entering her bridal era. She and husband George Clooney are back at their Venice wedding locale ahead of their 12-year anniversary and the lawyer even dressed the part. The couple, who wed on Sept. 27, 2014, were spotted exiting a dinner at the luxurious Aman hotel hand-in-hand Tuesday night, with Amal in a white satin slip dress with a fringed hem. The design included a 1920s-inspired flapper drop waist that split into cut ribbons of silk that moved around her legs as she walked. Her dress, of course, was much more casual than the off-the-shoulder lace Oscar de la Renta gown she wore to walk down the aisle in the…