Form of transport impeccably transformed without a PM's influence (7)
I believe the answer is:
bicycle
'form of transport' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for bicycle that I've seen before include "Personal transport" , "Lowest values" , "One's pushed to make progress" , "in getting Daisy married" , "A tandem is a . . . . . . . nade for two" .)