Old-fashioned Oriental curtain material (6)
I believe the answer is:
bamboo
'curtain material' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for bamboo that I've seen before include "Spotted tile; carnival mask" , "Tropical cane with hollow centres, used for furniture" , "Tall wood plant" , "Panda's dinner?" , "Treelike tropical grass" .)