Plate or saucer (4)
I believe the answer is:
dish
I believe this clue is a double definition.
'plate' is the first definition.
(type of plate)
'saucer' is the second definition.
(I know that saucer can be written as dish)
(Other definitions for dish that I've seen before include "Particular item of prepared food" , "Sky can be seen through this" , "something in the oven?" , "Plate and what's served on it" , "Lovely" .)