She has a bit of fun getting a heel replaced! (5)
I believe the answer is:
helen
'she' is the definition.
'a bit of fun getting a heel replaced' is the wordplay.
'a bit of fun' becomes 'n' (I am not sure about this - if you are sure you should believe this answer much more).
'getting' says to put letters next to each other.
'replaced' indicates an anagram.
'heel' is an anagram of 'hele'.
'n' after 'hele' is 'HELEN'.
'has' is the link.
Can you help me to learn more?
(Other definitions for helen that I've seen before include "-- Mirren, English actress" , "the Parisian woman?" , "beautiful woman" , "The Greek army sailed to Troy to get her back" , ""The face the launched 1,000 ships"" .)