Get in metal to embody a charm (9)
I believe the answer is:
entertain
'charm' is the definition.
'get in metal to embody a' is the wordplay.
'get in' becomes 'enter' (synonyms).
'metal' becomes 'tin' (tin is a kind of metal).
'to embody' is an insertion indicator.
'tin' enclosing 'a' is 'tain'.
'enter'+'tain'='ENTERTAIN'
(Other definitions for entertain that I've seen before include "Amuse or take into consideration" , "Welcome" , "cheer" , "Think about" , "Amuse, divert" .)