Bruise and thump are regularly seen here
I believe the answer is:
bust-up
'here' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'bruise and thump are regularly' is the wordplay.
'bruise' becomes 'bus' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'are regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternate letters of 'thump' are 'tup'.
'bus'+'tup'='BUST-UP'
'seen' acts as a link.
Can you help me to learn more?
(Other definitions for bust-up that I've seen before include "Quarrel, brawl" , "disagreement" , "Serious quarrel or fight (B, not D)" , "Quarrel, possibly ending a friendship" , "Argument finishing a relationship" .)