Music and drink bringing resonance (7)
I believe the answer is:
Here is my best explanation:
'resonance' is the definition.
'music and drink' is the subsidiary indication.
I cannot quite understand how this works, but
'music' could be 'rap' and 'rap' is present in the answer.
'drink' could be 'port' (port is a kind of drink) and 'port' is present in the answer.
No letters remain.
This may be the basis of clue (or it may be nonsense).
'bringing' is the link.
(Other definitions for rapport that I've seen before include "Sympathy", "Close and harmonious relationship", "Harmony", "Close relationship with a common understanding", "Understanding", "A harmonious and understanding relationship between people", "Instinctive understanding between people", "Mutual sensitivity and understanding", "close relationship" and "Empathy".)