Too good to be true (7)
I believe the answer is:
utopian
'true' is the definition.
Both the definition and answer are adjectives. Perhaps there's a link between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for utopian that I've seen before include "I put on a show of perfect kind" , "Citizens of Thomas More's perfect country" , "Perfectionist reformer" , "Idealistic but usually impractical" , "Really ideal in perfect fictional country" .)