Fight and shout about what's never ending (5)
I believe the answer is:
brawl
'fight' is the definition.
(brawl is a kind of fight)
'shout about what's never ending' is the wordplay.
'shout' becomes 'bawl' (I've seen this before).
'about' is an insertion indicator.
'what's never ending' becomes 'r' (I can't justify this - if you can you should give a lot more credence to this answer).
'bawl' placed around 'r' is 'BRAWL'.
'and' is the link.
Can you help me to learn more?
(Other definitions for brawl that I've seen before include "Rough, noisy fight" , "Rowdy fight" , "squabble" , "I'd punt for a learned person" , "Noisy crowd fight" .)