Say harshly, "Where's the fire?” (5)
I believe the answer is:
grate
'the fire?' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for grate that I've seen before include "Firebasket" , "Grind (teeth)" , "in which Santa lands?" , "part of fireplace" , "Great (anag.)" .)