"Sorry I was a bit short with you earlier, Potter," she said abruptly. "It's stressful this managing lark, you know, I'm starting to think I was a bit hard on Wood sometimes." She was watching Ron over the rim of her goblet with a slight frown on her face.
Harry Potter and the Order of the Phoenix
What does "It's stressful this managing lark" mean? Does it mean this managing lark is stressful?