Crossword Puzzle Mother of Orestes

Clue: Mother of Orestes

Mother hen's offering, for short (TLC with 3 letters)
Mother Goose offerings, or in a different sense, this puzzle's title (NURSERYRHYMES with 13 letters)
Powerful Mother (NATURE with 6 letters)
Mother's sister (AUNT with 4 letters)
Chevy offering (TAHOE with 5 letters)
Office communication (e.g. FAX with 3 letters)
Highest-ranking USN officer (ADM with 3 letters)
Corp. official (TREAS with 5 letters)
Loki offspring (HEL with 3 letters)
Stock offering? (e.g. MOO with 3 letters)