Temple on the Athenian Acropolis (9)
I believe the answer is:
parthenon
'temple on the athenian acropolis' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for parthenon that I've seen before include "Tourist attraction of Athens" , "Temple on the Athenian Acropolis" , "ruined Greek temple" , "Ancient temple" , "Temple of Athene on Acropolis in Athens" .)