A macher is defined as someone who can make things happen.(noun)
An example of a macher is a very organized wedding planner.
The definition of a macher is a leader or a high powered boss.(noun)
An example of a macher is the president of a union that influences many people.
See macher in Webster's New World College Dictionary
Origin: Ger (chiefly via Yiddish) < machen, to make, do