Shifty fellow (6)
I believe the answer is:
dodger
'shifty fellow' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for dodger that I've seen before include "Oliver is the artful one" , "Dickens created an Artful . . . . . ." , "Roger, possibly" , "The Artful . . . . . . was Oliver Twist's friend" , "Artful Dickens character" .)