Husband cooked steak outside home: plate cooling? (4,4)

'plate cooling?' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

'husband cooked steak outside home' is the wordplay.
'husband' becomes 'h' (abbreviation).
'cooked' indicates an anagram (letters cooked into a new form).
'outside' means one lot of letters goes inside another (some letters go outside others).
'home' becomes 'in' ('he's home' can mean 'he's in').
'steak' is an anagram of 'eatsk'.
'eatsk' enclosing 'in' is 'eatsink'.
'h'+'eatsink'='HEAT SINK'

Can you help me to learn more?