Super-duper
(Other definitions for fab that I've seen before include "Marvellous (sl.)" , "Excellent (slang)" .)
'super-duper' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aces that I've seen before include "that are non-returnable" , "winning points" , "excellent service" , "Case of top cards" , "wartime pilots?" .)
'super-duper' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ultra that I've seen before include "Prefix meaning excessively or extremely" , "Far beyond the norm" , "Extreme (eg in fashion or politics)" , "Person holding extreme views" , "(As prefix) beyond or extreme" .)