Kitchen heater tested with pair getting evicted (4)
I believe the answer is:
oven
'kitchen heater' is the definition.
'oven' can be an answer for 'heater' (thesaurus). I am not sure about the 'kitchen' bit.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for oven that I've seen before include "Liquid oxygen; salmon" , "Small kiln" , "kitchen fixture" , "Stove" , "Kitchen range, say" .)