False name (5)
'false name' is the definition.
(synonyms)
This is all the clue.
(Other definitions for alias that I've seen before include "it may be assumed" , "stage name, perhaps" , "Cabbage salad" , "another name" , "False identity" .)
'false name' is the definition.
(anonym is a kind of false name)
This is the entire clue.
(Other definitions for anonym that I've seen before include "Assumed or false name" , "Person whose name is not given" , "Fictitious name" , "Pseudonym" , "One whose name is not given" .)