Verb
(transitive) To seal by sewing.
(transitive, figuratively) To bring a matter to a full conclusion that deals with all outstanding issues or other concerns.
Source: en.wiktionary.orgAcademic achievement was something I'd always sought as a form of reward. Good grades pleased my parents, good grades pleased my teachers; you got them in order to sew up approval. Caroline Knapp
I was in a play directed by my father, and I was doing a fight scene, and the choreography went haywire, and I flew backward over a chair and ripped my thumb all the way to my wrist and had to have surgery to sew up all the tendons in there. Jeremy Piven
Men must sew up tears with gentleness. Arabic Proverb