Disloyal (5)
'disloyal' is the definition.
(associated in meaning)
This is the entire clue.
(Other definitions for false that I've seen before include "Spurious, untrue" , "Invalid; untrue" , "Erroneous" , "Misleading" , "Untrue - treacherous - counterfeit" .)
'disloyal' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for traitorous that I've seen before include "Unfaithful" , "committing treachery" , "Disloyal" , "throwing down the Emperor?" , "Betraying" .)