Airline quietly serving you bread roll (3)
I believe the answer is:
bap
'bread roll' is the definition.
(bap can mean a roll)
'airline quietly' is the wordplay.
'airline' becomes 'BA' (British Airways).
'quietly' becomes 'p' (p for piano and quiet).
'ba'+'p'='BAP'
'serving you' is the link.
(Other definitions for bap that I've seen before include "A soft flat bread roll" , "Large flat round roll" , "Flattish bread roll" , "Big roll" , "Large soft bread roll" .)