Virtuous, with passion, but no heart (4)
I believe the answer is:
holy
'heart' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for holy that I've seen before include "Hallowed" , "Charlemagne was the first" , "Sacred" , "Dedicated to God" , "Sacrosanct" .)