Duster, it removed debris (8)
I believe the answer is:
detritus
'debris' is the definition.
('detritus' can be a synonym of 'debris')
'duster it removed' is the wordplay.
'removed' indicates an anagram (moved again).
'duster'+'it'='dusterit'
'dusterit' anagrammed gives 'DETRITUS'.
(Other definitions for detritus that I've seen before include "Worn down rocks, gravel etc." , "Loose eroded matter" , "Gravel or loose matter produced by erosion" , "Bits and pieces of rubbish" , "Left over bits and pieces" .)