Under One's Wing Meaning
(idiomatic) Under one's protection, sponsorship, or tutelage.
Example: He took the promising student under his wing.
The promising student came under the professor's wing.
He remained under the great man's wing after graduation.
Now a professor himself he has young students under his wing.
March 15 2012, Soctt Tobias, The Kid With A Bike [Review]
By happy accident, Cyril runs into Samantha (CÃ©cile de France), a single hairdresser who takes him under her wingâ€”first to help him find his missing bike and father, and later, on weekends away from the group home.