French red wine (6)
(Other definitions for bordeaux that I've seen before include "French city" , "French river port - claret" , "Major French centre of the wine trade" , "Claret district" , "Port; French wine" .)
(Other definitions for merlot that I've seen before include "Black grape variety" , "Wine made from bad elm rot" , "French variety of grape" , "Grape makes elm rot" , "Kind of wine grape" .)
'french red wine' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for medoc that I've seen before include "French intoxicant" , "that's regularly drunk?" , "Wine-growing area" , "region of France" , "Red wine from southwest France" .)