Celebrity with false teeth and plaque (9)
I believe the answer is:
nameplate
'plaque' is the definition.
(I've seen this before)
'celebrity with false teeth' is the wordplay.
'celebrity' becomes 'name' (as in a 'big name').
'with false teeth' becomes 'plate' (I can't explain this - if you can you should give a lot more credence to this answer).
'name'+'plate'='NAMEPLATE'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for nameplate that I've seen before include "One identifies" , "for handle at entrance" , "Plaque" , "It may be attached to an office door" , "sign of ownership" .)