I agree with strangelybrown about the number of 'difficult to parse' answers in this one! Here are a couple that are currently stumping me:
43A Half a pair of pants? (6)
B _ E _ T _
It looks like it must be BREATH. But why?
53A Three is one and two and zero (7)
I _ T _ G _ R
This looks like INTEGER but (other than three, two and one all being integers) I don't know why.
Any suggestions?