He, a politician, associates with a dope! (4)
I believe the answer is:
hemp
'a dope' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'he a politician associates with' is the wordplay.
'a politician' becomes 'MP' (Member of Parliament).
'associates with' says to put letters next to each other.
'he'+'mp'='HEMP'
Can you help me to learn more?
(Other definitions for hemp that I've seen before include "Plant fibre used to make rope" , "Source of drug" , "Grass" , "Narcotic drug" , "Plant for rope or pot" .)