"So long!"
'so long' is the definition.
(I've seen this in other clues)
This is the entire clue.
(Other definitions for tata that I've seen before include "See you" , "cheerio!" , "So long!" .)
'so long' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for bye that I've seen before include "So long" , "Farewell! (informal)" , "Reason not to play" , "Extra run; farewell" , "Get one to advance to the next round without playing an opponent" .)
'so long' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for toodle-oo that I've seen before include "Goodbye (dated)" , "Bye!" , "Cheerio" , "Ta-ta" , "See you later!" .)
'so long' is the definition.
(I know that so long can be written as bye-bye)
This is the entire clue.
(Other definitions for bye bye that I've seen before include "Later" , "The last word" , "so long!" , "See you" , "One could well be dismissed with this" .)