City known for its Heat (5)
I believe the answer is:
miami
'city known for its heat' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for miami that I've seen before include "Florida resort city, Beach" , "Prejudice in favour of one person or thing" , "Popular sun-city of Florida" , "Resort city in SE Florida" , "I put out of action when returning" .)