Chinese for "black dragon" (6)
I believe the answer is:
oolong
'chinese for black dragon' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oolong that I've seen before include "sort of leaves" , "Kind of Chinese tea" , "A variety of black China tea with green tea flavour" , "Kind of China tea" , "Chinese tea leaves - no logo (anag)" .)