Emma

Fun puzzle but I don’t get how “sob” answers blue belt? I see they both could be sad, but I don’t think sobbing is the same as belting. But maybe I’m on the wrong track?

I don’t understand 31 across or down. I only got it by guessing (and it was my last undone square). Can someone help me? How does “fit” answer “meet”?

Sorry if I missed it, but I can’t find an explanation of 47a. How does “They’re OK” lead to DOS? I was totally stumped. Thanks!