Friends and family members share new details about the recent bride
Credit: Karwai Tang/WireImage

Amal Clooney gets things done.

A little more than two weeks after her Sept. 27 wedding to a certain Oscar-winning actor, she was back to business, matter-of-factly using her brand-new last name.

Arriving in Athens on Oct. 13, the jet-setting international attorney was set to meet with Greek prime minister Antonis Samaras in an effort to mediate one of the world’s biggest cultural-property disputes.

While her other half, George Clooney, also returned to work, promoting his upcoming sci-fi adventure Tomorrowland at New York Comic Con on Oct. 9, Amal was tackling a complex legal case involving priceless Greek sculptures dating back more than 2,000 years and a centuries-old fight between Britain and Greece over ownership.

In other words, just another day at the office for the fiercely smart and ambitious newlywed, who coolly navigated princess-level pandemonium when she touched down in Greece.

“She is calm, highly intelligent and extremely dedicated,” a colleague tells PEOPLE.

“This case shows she is going to be her own woman. Her career is continuing as it was before this minor interruption.”