To have the definitive solution to a particular problem situation. I think you could have this contract cinched here if you just offer him more vacation days.
have something cinched
Fig. Inf. to have something settled; to have the results of some act assured. Don't worry. I've got it cinched.You just think you've got it cinched.
have something cinched
tv. to have something settled; to have the results of some act assured. (see also cinched. Have got can replace have.) You just think you’ve got it cinched.