Game is broadcast in pictures (6)
I believe the answer is:
images
'pictures' is the definition.
(I know this)
'game is broadcast' is the wordplay.
'broadcast' is an anagram indicator (letters scattered or cast around).
'game'+'is'='gameis'
'gameis' with letters rearranged gives 'IMAGES'.
'in' is the link.
(Other definitions for images that I've seen before include "Representations or reflections" , "Photos or likenesses" , "'Reflections, likenesses (6)'" , "Likenesses or effigies" , "Photos or representations" .)