One skilled in communication, and bagging gold medal (9)
I believe the answer is:
wordsmith
'one skilled in communication' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'and bagging gold medal' is the wordplay.
'and' becomes 'with'.
'bagging' means one lot of letters goes inside another (bag can mean to obtain or contain).
'gold' becomes 'or' ('or' is the heraldic name for gold).
'medal' becomes 'DSM' (Distinguished Service Medal).
'or'+'dsm'='ordsm'
'with' enclosing 'ordsm' is 'WORDSMITH'.
Can you help me to learn more?
(Other definitions for wordsmith that I've seen before include "Person skilled at writing" , "fluent writer" , "he'd be good at coining?" , "Author" , "Skilled writer or orator" .)