City over in Europe's less urbanised (8)
I believe the answer is:
brussels
'city' is the definition.
(Brussels is an example)
'over in europe's less urbanised' is the wordplay.
'over' is a reversal indicator.
'in' indicates the answer is hidden within the clue.
'slessurb' is hidden within 'europes less urbanised'.
'slessurb' written backwards gives 'BRUSSELS'.
(Other definitions for brussels that I've seen before include "European Commission HQ" , "Seat of the European Commission" , "Union's base" , "sprout?" , "European capital" .)