Blast! It's making the baby cry! (4)
I believe the answer is:
wind
But I can't explain it at all! Could you help me understand?
(Other definitions for wind that I've seen before include "Curl sinuously" , "Twist or turn (in course)" , "take course that's not straightforward? Doesn't sound like it" , "Coil; breeze" , "Air-current" .)