Song has character (3)
I believe the answer is:
air
I believe this is a double definition.
'song' is the first definition.
(I've seen this before)
'character' is the second definition.
(air can mean a character or mood)
'has' is the link.
(Other definitions for air that I've seen before include "distinctive quality" , "voice giving > impression" , "piece of music" , "If it's hot, it's boastful" , "See 21" .)