Advanced (5)
'advanced' is the definition.
(ahead can mean advanced or in front)
This is all the clue.
(Other definitions for ahead that I've seen before include "in van" , "In front as in race" , "at pole" , "In the future" , "In the leading position" .)
'advanced' is the definition.
('promote' can be a synonym of 'advance')
This is all the clue.
(Other definitions for promoted that I've seen before include "Publicised" , "Pushed" , "Advanced" , "Put up" .)