Daydreams about safe saint (9)
I believe the answer is:
fantasies
'daydreams' is the definition.
(I have seen 'Pleasant daydreams ' mean 'fantasies' so perhaps 'daydreams' could also mean 'fantasies')
'about safe saint' is the wordplay.
'about' indicates anagramming the letters.
'safe'+'saint'='safesaint'
'safesaint' with letters rearranged gives 'FANTASIES'.
(Other definitions for fantasies that I've seen before include "Imagination unrestricted by reality" , "Sea faints might be pipedreams" , "Pipe dreams, illusions" , "Daydreams or products of the imagination" , "Pleasant daydreams" .)