Like rococo architecture (6)
I believe the answer is:
ornate
'like rococo architecture' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ornate that I've seen before include "Elaborately decorated, perhaps overdone" , "Elaborate, flowery" , "(Of literary style) complex and with unusual words" , "Much-decorated" , "Richly decorated, perhaps too much so" .)