Tea (3)
'tea' is the definition.
(cha is a type of tea)
This is all the clue.
(Other definitions for cha that I've seen before include "not allowed in ski lodge" , "Indian tea" , "Tea (informal)" , "Tea (colloq.)" , "drink" .)
(Other definitions for urn that I've seen before include "tea maker" , "Run to get large vase" , "Vase with handles" , "Vessel for tea or ashes" , "Vase for containing ashes" .)
(Other definitions for iced that I've seen before include "Finished off cake" , "Decorated with sugary mixture" , "Kept cool" , "reduced number of degrees" , "Core; card; organ" .)