Upright European reportedly ruined (5)
I believe the answer is:
erect
'upright' is the definition.
(similar in meaning)
I don't understand how the remainder of the clue works.
(Other definitions for erect that I've seen before include "Rigidly upright" , "Build, upright" , "Build, set up" , "Crete (anag)" , "Assemble" .)