I spoilt game photo (5)
I believe the answer is:
image
'photo' is the definition.
(I've seen this in another clue)
'i spoilt game' is the wordplay.
'spoilt' indicates anagramming the letters.
'game' with letters rearranged gives 'mage'.
'i'+'mage'='IMAGE'
(Other definitions for image that I've seen before include "Visualisation" , "public perception" , "Picture; simile" , "External impression" , "Representation of person or thing" .)