Governor with only one foot? (5)
I believe the answer is:
ruler
'governor' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ruler that I've seen before include "One exercising control" , "Queen, say" , "Emperor - measure" , "Straight edge; governor" , "One governing" .)