Marker (3)
'marker' is the definition.
(I know that tag is a type of label)
This is all the clue.
(Other definitions for tag that I've seen before include "Label or sticker" , "Children's chasing game" , "stock quotation" , "Identity disc" , "Label - children's game" .)
'marker' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tab that I've seen before include "Running bar bill" , "ticket" , "Text indent key" , "Flap; illicit drug pill (slang)" , "Check" .)