Blyton’s policeman? Continue... (4)
I believe the answer is:
goon
'blyton's' is the definition.
I can't judge whether this defines the answer.
'policeman? continue' is the wordplay.
'policeman?' becomes 'go' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'continue' becomes 'on' (I've seen this in other clues).
'go'+'on'='GOON'
Can you help me to learn more?
(Other definitions for goon that I've seen before include "someone rather stupid" , "He's very stupid" , "Is this show" , "Foolish person - thug (US)" , "person making fool of himself" .)