Online broadcast of games might ultimately be boring? (6)
I believe the answer is:
stream
'online broadcast' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'games might ultimately be boring?' is the wordplay.
'ultimately' says to take the final letters.
'be boring?' becomes 'ream' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The final letters of 'games might' are 'st'.
'st'+'ream'='STREAM'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for stream that I've seen before include "Steady flow; pupil group" , "Brook or rivulet" , "Quantity of water" , "Torrent" , "Flowing water" .)