Arthur gave direction to Bonnie and Clyde (4)
I believe the answer is:
penn
'arthur' is the definition.
Both the definition and answer are singular nouns.
Maybe you can see a link between them that I don't see?
'direction to bonnie and clyde' is the wordplay.
'direction' becomes 'N' (compass direction north).
'to' means one lot of letters go next to another (I've seen this in other clues).
'bonnie and clyde' becomes 'pen' (I can't justify this - if you can you should believe this answer much more).
'n' put after 'pen' is 'PENN'.
'gave' is the link.
Can you help me to learn more?
(Other definitions for penn that I've seen before include "Milk actor" , "founder of colony" , "Early Quaker leader" , "William ---, Quaker colonist" , "William --, founder of a US state" .)