Ben & Holly's Little Kingdom (2009)

S2E14 Nanny's Magic Test

Nanny Plum discovers that her magic license has expired, prompting her to go back to Mrs. Fig's magic school. To regain her license, she must successfully complete a challenging test administered by the Wise Old Elf. With her magical abilities on the line, Nanny faces the pressure of proving herself once again in the enchanting world of magic education.