under (one's) wing
In the state of being protected, tutored, nurtured, or cared for by one; in one's care. I was nervous starting an internship at my uncle's company, but it definitely made it easier being under his wing. Our parents died when we were quite young, so my aunt took us under her wing.
*under someone's wing(s)
Fig. receiving someone's care and nurturing. (*Typically: get someone ~; have some-one ~; take someone ~.) John wasn't doing well in geometry until the teacher took him under her wing. I had a number of the new workers under my wing for a few weeks.
under someone's wing
Guided or protected by someone, as in The department head asked Bill to take Joe under his wing during his first few weeks with the firm . This metaphoric term alludes to the mother hen sheltering her chicks. [1200s]
under your wing
in or into your protective care. 1991 Mickey Mantle My Favorite Summer He kind of took me under his wing and showed me the ropes in my first year.
under (one's) wing
Under one's protection; in one's care.