John or John Quincy
I believe the answer is:
adams
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">john or john quincy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for adams that I've seen before include "revolutionary leader" , "Douglas - (The Hitchhiker's Guide to the Galaxy)" , "Former US president" , "Name of two early US presidents" , "American composer" .)