Steep downward plunge (8)
I believe the answer is:
nosedive
(Other definitions for nosedive that I've seen before include "plummet" , "Dramatic fall" , "sudden drop" , "fall precipitately" , "steep fall" .)
I believe the answer is:
nosedive
(Other definitions for nosedive that I've seen before include "plummet" , "Dramatic fall" , "sudden drop" , "fall precipitately" , "steep fall" .)