Oldest university in the USA (7)
I believe the answer is:
harvard
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">oldest university in the usa</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for harvard that I've seen before include "US Ivy League university" , "Member of the 11 at Cambridge, Massachusetts" , "place of learning" , "American university" , "Ivy league university in Cambridge, Massachusetts" .)