Urban area that each other across answer has here (5,4)
I believe the answer is:
inner city
'urban area that each other across answer has here' is the definition.
'inner-city' can be an answer for 'urban area' (I've seen this in another clue). I am unsure of the rest of the definition.
'urban area that each other across' is the wordplay.
'urban area' becomes 'city' (city is a kind of urban area).
'that each other' becomes 'inner' (I am not sure about this - if you are sure you should believe this answer much more).
'across' means one lot of letters go next to another (across can mean on).
'city' put after 'inner' is 'INNER CITY'.
Can you help me to learn more?
(Other definitions for inner city that I've seen before include "In run-down area" , "Urban centre" , "Urban sprawl" , "Centre of conurbation" .)