Like Keats's urn (7)
I believe the answer is:
grecian
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">like keats's urn</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for grecian that I've seen before include "of ancient Olympia, say" , "Relating to ancient Greece" , "Athenian man" , "straight sort of nose" , "Attic" .)