(~s, ~ing, ~ed)
1.
If you ~ a difficult or complicated activity, you plan it in detail and then make sure that it happens successfully.
The finance minister will continue to ~ Poland’s economic reform...
VERB: V n
2.
The ~ behind a difficult or complicated plan, often a criminal one, is the person who is responsible for planning and organizing it.
He was the ~ behind the plan to acquire the explosives.
N-COUNT: usu sing, usu with supp, oft N behind/of n