Turns out pain is too good to be true (7)
I believe the answer is:
utopian
'good to be true' is the definition.
I can't judge whether this defines the answer.
'turns out pain is too' is the wordplay.
'turns' is an anagram indicator.
'is too' means one lot of letters go next to another.
'out'+'pain'='outpain'
'outpain' with letters rearranged gives 'UTOPIAN'.
Can you help me to learn more?
(Other definitions for utopian that I've seen before include "Really ideal in perfect fictional country" , "Too perfect for this world" , "in a dreamy state" , "Perfect (state)" , "Perfectionist reformer" .)