Face operation: expert does, we hear (4,3)
I believe the answer is:
nose job
'face operation' is the definition.
'nose job' can be an answer for 'operation' (nose job is a kind of operation). I am unsure of the 'face' bit.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for nose job that I've seen before include "Piece of plastic surgery" , "Rhinoplasty" , "Schnozzle surgery" , "work for boat race" , "Facial operation" .)