Celebrity makes a couple of notes (4)
I believe the answer is:
fame
'celebrity' is the definition.
('fame' can be a synonym of 'celebrity')
'a couple of notes' is the wordplay.
'a couple of notes' means two replacements for 'note'.
'note' becomes 'fa' (fourth note in sol-fa notation: doh, ray, me...**).
'note' becomes 'me'.
'fa'+'me'='FAME'
'makes' acts as a link.
(Other definitions for fame that I've seen before include "Note" , "Renown, celebrity" , "''... is the spur that the clear spirit doth raise (Lycidas, John Milton)" , "Notoriety or celebrity" , "Favourable public reputation" .)