Elevated with no-one - just torn down (5)
I believe the answer is:
rased
'torn down' is the definition.
('rase' can be a synonym of 'tear down')
'elevated with no-one' is the wordplay.
'elevated' becomes 'raised' (similar in meaning).
'with no' indicates named letters should be taken away.
'one' becomes 'i' (Roman numeral).
'raised' with 'i' taken out is 'RASED'.
'just' is the link.
(Other definitions for rased that I've seen before include "Flattened to the ground" , "totally devastated" , "brought low" , "knocked down" , "Destroyed, tore down to the ground" .)