Answer: skylark

AnswerCrossword Clue
SKYLARK

1941 Mercer-Carmichael song

SKYLARK

Subject of a Shelley ode

SKYLARK

Old Buick model

SKYLARK
Frolic
SKYLARK
Small songbird
SKYLARK"Blithe spirit."
SKYLARKSubject of Shelley lyric.
SKYLARKShelley subject.
SKYLARKSpree in the ether?
SKYLARKSongbird
SKYLARKBird known to sing while flying
SKYLARKShelley subject
SKYLARKBuick model
SKYLARKBuick model introduced in 1953