Brought to a conclusion everywhere (3,4)
I believe the answer is:
all over
'everywhere' is the definition.
(synonyms)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for all over that I've seen before include "Finished" , "covering everything" , "typically" , "Excessively attentive" , "very characteristically" .)