Biennial international golf tournament (5,3)
I believe the answer is:
ryder cup
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">biennial international golf tournament</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ryder cup that I've seen before include "Golfing contest" , "Prize for golfers" , "trophy" , "sporting contest" , "Biennial international golf tournament" .)