Piece of cloth (3)
'piece of cloth' is the definition.
(patch is a kind of piece of cloth)
This is the entire clue.
(Other definitions for patch that I've seen before include "Mend with piece of material" , "Plot - piece of cloth - period" , "Repair; area" , "Covering material" , "Piece of sewn-on material" .)
'piece of cloth' is the definition.
(rag is a kind of piece of cloth)
This is all the clue.
(Other definitions for rag that I've seen before include "Tattered cloth or university fiesta" , "Make fun of; scrap" , "University festival or torn cloth" , "Bit of cloth" , "Student carnival for charity" .)