Communist measure demonstrates undue bureaucracy (3,4)
I believe the answer is:
red tape
'undue bureaucracy' is the definition.
(red tape means excessive bureaucracy)
'communist measure' is the wordplay.
'communist' becomes 'red' (red can informally mean communist).
'measure' becomes 'tape' (I've seen this before).
'red'+'tape'='RED-TAPE'
'demonstrates' is the link.
(Other definitions for red tape that I've seen before include "Irritating bureaucracy" , "Excessive bureaucracy (3.4)" , "European regulations?" , "Bureaucratic ribbon" , "(Obstructive) bureaucracy" .)