Rush through potential Monopoly purchase (8)
I believe the answer is:
railroad
'rush through' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for railroad that I've seen before include "US term for train line" , "[DRAGOON]" , "Rush (someone) into doing something" , "Coerce (someone) into doing something" , "Push through unduly" .)