Crossword Genius

Badly rusted piece of cleaning equipment (6)

Ross

I believe the answer is:

duster

'piece of cleaning equipment' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'badly rusted' is the wordplay.
'badly' is an anagram indicator.
'rusted' with letters rearranged gives 'DUSTER'.

(Other definitions for duster that I've seen before include "Soft cloth for cleaning surface" , "Polishing cloth" , "Cloth for cleaning chalk from blackboard" , "cleaner" , "Cloth for removing surface powder" .)

I've seen this clue in The Globe and Mail.
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