Interrogated cook and journalist (7)
I believe the answer is:
grilled
'interrogated' is the definition.
(I've seen this before)
'cook and journalist' is the wordplay.
'cook' becomes 'grill' (grilling is a form of cooking).
'and' says to put letters next to each other.
'journalist' becomes 'ed' (short for editor).
'grill'+'ed'='GRILLED'
(Other definitions for grilled that I've seen before include "Cooked under flames" , "Cooked; questioned" , "Cooked; interrogated" , "Cross-questioned - cooked" , "Subjected to intense questioning" .)