Pouch of powder or sauce (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
sachet
(Other definitions for sachet that I've seen before include "Package" , "Small soft container -- a chest (anag)" , "Small bag with sweet-smelling substance" , "Small envelope-like container" , "Small soft bag, containing perfumed powder perhaps" .)