Doesn't stay calm (6)
I believe the answer is:
panics
(Other definitions for panics that I've seen before include "Loses one's head" , "Yields to fear, loses the head" , "Gets into a sweat" , "Loses the head, takes fright" .)
I believe the answer is:
panics
(Other definitions for panics that I've seen before include "Loses one's head" , "Yields to fear, loses the head" , "Gets into a sweat" , "Loses the head, takes fright" .)