Little devil in crisis (6)
I believe the answer is:
pickle
I believe this is a double definition.
'little devil' is the first definition.
(both can mean a troublesome child)
'crisis' is the second definition.
(pickle can mean a difficulty or crisis)
'in' acts as a link.
(Other definitions for pickle that I've seen before include "tight spot" , "Steep - predicament" , "Relish, difficult situation" , "Condiment - tricky situation - troublesome child" , "Preserve; muddle" .)