Dick may take a seat in the middle of the road! (7)
I believe the answer is:
richard
'dick' is the definition.
(Dick is a nickname for Richard)
'take a seat in the middle of the road' is the wordplay.
'take' becomes 'rich' (I am not sure about this - if you are sure you should believe this answer much more).
'a seat' becomes 'chair' (chair is a kind of seat).
'in the middle of' indicates the central letters (I've seen 'in the middle' mean this).
'the road' becomes 'rd' (abbreviation for road).
The middle of 'chair' is 'a'.
'rich'+'a'+'rd'='RICHARD'
'may' is the link.
Can you help me to learn more?
(Other definitions for richard that I've seen before include "-- Strauss, composer" , "Cliff --; -- Wagner" , "Lionheart king" , "Sir Cliff" , "Mr Hannay" .)