Claire Danes deserves some downtime — all the better if it’s in the arms of hunky “Homeland” co-star Damian Lewis, here in an Annie Leibovitz shot for August’s Vogue. As the intense spy thriller begins Season 3 next month, Danes tells the mag that playing a bipolar CIA agent is daunting. “I was scared of [the role],” she said. “And I thought, OK, that means I have to do it.”