Tune (3)
'tune' is the definition.
(air can mean a piece of music)
This is all the clue.
(Other definitions for air that I've seen before include "Tune (on the G string?)" , "Atmosphere (of a melody?)" , "Broadcast; tune" , "Substance breathed in" , "Outward appearance" .)
'tune' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for melody that I've seen before include "It forms the core of a tune" , "Sweet music, tuneful song" , "Strain" , "Air, tune" , "Refrain" .)
'tune' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for song that I've seen before include "Something recorded by 26 [FACES] , for example" , "Ditty" , "Ballad, aria" , "You work best when on this" , "Vocal number" .)
'tune' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lilt that I've seen before include "Cheerful song" , "Rise and fall" , "...jaunty rhythm, perhaps" , "Till to get light and pleasant rhythm" , "Light graceful swinging rhythm" .)