This guy, a politician, has material for rope making (4)
I believe the answer is:
hemp
'this guy a politician has material for rope making' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'this guy a politician' is the wordplay.
'this guy' becomes 'he' ('he' refers to a man).
'a politician' becomes 'MP' (Member of Parliament).
'he'+'mp'='HEMP'
Can you help me to learn more?
(Other definitions for hemp that I've seen before include "Cannabis sativa" , "Plant for rope or pot" , "Source of drug" , "Rope-making fibre" , "Narcotic drug" .)