TV detective indeed warmed through (9)
I believe the answer is:
defrosted
'warmed through' is the definition.
The answer and definition can be both related to change as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for defrosted that I've seen before include "melted" , "warmed up" .)