Fermented milk (6)
(Other definitions for yoghurt that I've seen before include "Curdled-milk dessert" , "spoiled dairy product" , "Food from fermented milk" , "Curdled milk dish" , "Dairy food" .)
(Other definitions for yogurt that I've seen before include "Grouty (anag.)" , "Thick dairy product" , "Food made from fermented milk" , "Dairy product made from curdled milk" , "Semi-liquid dairy product" .)