Trifled with a toy boy? (5)
I believe the answer is:
toyed
'trifled with' is the definition.
(I've seen this in another clue)
'a toy boy?' is the wordplay.
'boy?' becomes 'ed' (short for Edward).
'toy'+'ed'='TOYED'
(Other definitions for toyed that I've seen before include "Trifled (with someone's affections)" , "Engaged in an activity, but not seriously" , "fiddled" , "Played" , "was trifling" .)