Federer briefly interrupted media development (8)
I believe the answer is:
progress
'development' is the definition.
(I know that progress is a type of development)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for progress that I've seen before include "Advancement" , "Forward movement towards a destination or goal" , "Advance - movement" , "Go on - journey" , "Move forward" .)