*Pseudo-psychiatrist changing heart (5)
I believe the answer is:
fraud
'pseudo' is the definition.
(I know that pseudo can be written as fraud)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for fraud that I've seen before include "Deceit, especially financial" , "Duplicity" , "Charlatan" , "Cheat" , "Scam" .)