Absolutely correct (4-2)
'absolutely correct' is the definition.
(spot on means exactly right)
This is the entire clue.
(Other definitions for spoton that I've seen before include "precisely what is needed" , "very accurate" , "precise" , "Exactly!" .)
'absolutely correct' is the definition.
(spot on means exactly right)
This is all the clue.
(Other definitions for spot-on that I've seen before include "Informally - exactly so, precisely" , "Precisely correct" , "Perfect" , "On the button, precisely so" , "Informally precise, exactly right" .)