Worry cook (4)
I believe the answer is:
stew
I believe this clue is a double definition.
'worry' is the first definition.
(I've seen this in another clue)
'cook' is the second definition.
(I know that stew is a more specific form of the action cook)
(Other definitions for stew that I've seen before include "Slow-cooked dish of meat and vegetables" , "Slow-cooked meat dish; state of agitation" , "Cook; worry" , "what might be for dinner?" , "Cook slowly and for a long time in liquid" .)