Cloth for cleaning (3)

I think it could be either:

Which length description are you looking for?:

rag

'cloth for cleaning' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for rag that I've seen before include "Practical joke" , "Piece of cloth for student's fun" , "Scrap of old cloth" , "Piece of cloth and student fun" , "Tattered cloth or university romp" .)

I've seen this clue in the USA Today.

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