__ plume (3,2)
'plume' is the definition.
(I know that plume can be written as feather)
This is all the clue.
(Other definitions for feather that I've seen before include "trifling thing" , "English plume (de ma tante?)" , "Quill" , "thing of little importance" , "Rotate (propeller) blades (to reduce thrust)" .)