Guide damaged teeth, sure (9)
I believe the answer is:
usherette
'guide' is the definition.
(usherette is a kind of guide)
'damaged teeth sure' is the wordplay.
'damaged' indicates an anagram.
'teeth'+'sure'='teethsure'
'teethsure' is an anagram of 'USHERETTE'.
(Other definitions for usherette that I've seen before include "Female theatre attendant" , "Cinema attendant" , "She shows people to seats" , "Girl guide" , "Person showing people to their seats" .)