Brilliant display mounted in oriental centre (5)
I believe the answer is:
eclat
'brilliant display' is the definition.
(I've seen this before)
'mounted in oriental centre' is the wordplay.
'mounted' is a reversal indicator.
'in' says the answer is hidden in the clue.
'talce' is hidden in the letters of 'oriental centre'.
'talce' written backwards gives 'ECLAT'.
(Other definitions for eclat that I've seen before include "brilliant effort" , "Acclaim; showy display" , "Cleat (anag.)" , "Splash" , "Universal approval" .)