Charlie joins a book club — he should know his way around (3,6)
I believe the answer is:
cab driver
'he should know his way around' is the definition.
(a cab driver should know the way to places)
'charlie joins a book club' is the wordplay.
'charlie' becomes 'c' (phonetic alphabet: alpha, bravo, charlie etc.).
'joins' is a charade indicator (letters next to each other).
'book' becomes 'b' (abbreviation for book).
'club' becomes 'driver' (type of golf club).
'c'+'a'+'b'+'driver'='CAB DRIVER'
(Other definitions for cab driver that I've seen before include "one plying for hire" , "type to give others a ride" , "one waiting in ranks?" .)