Potpourri pieces (6)
I believe the answer is:
petals
'potpourri pieces' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for petals that I've seen before include "1 across (anag)" , "Palest parts of flowers" , "Parts of flowers in pastel" , "Plates (anag.)" , "Flower parts on plates" .)