Surprising fact about Victor and Joy (10)
I believe the answer is:
revelation
'surprising fact' is the definition.
'victor and joy' is the wordplay.
'victor' becomes 'rev' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'joy' becomes 'elation' (elation is a kind of joy).
'rev'+'elation'='REVELATION'
'about' is the link.
(Other definitions for revelation that I've seen before include "Surprising disclosure" , "Part of Bible" , "NT book" , "The last book to give clergyman" , "Extraordinary event" .)