Super-duper
(Other definitions for fab that I've seen before include "Marvellous (sl.)" , "Excellent (slang)" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">super-duper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for aces that I've seen before include "that are non-returnable" , "winning points" , "excellent service" , "Case of top cards" , "wartime pilots?" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">super-duper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(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" .)