Ears need to be adjusted for love song (8)
I believe the answer is:
serenade
'love song' is the definition.
(a serenade might be sung to a lover)
'ears need to be adjusted' is the wordplay.
'to be adjusted' indicates an anagram.
'ears'+'need'='earsneed'
'earsneed' anagrammed gives 'SERENADE'.
'for' acts as a link.
(Other definitions for serenade that I've seen before include "Musical performance, under a lady's window?" , "Song to a lover" , "Murder" , "Sing to (lover)" , "Romantic song under fair lady's window" .)