Answer: kkkkaty

AnswerCrossword Clue
KKKKATYThe "only g-g-g-girl that I adore," according to a WWI-era song
KKKKATYSong of 1918
KKKKATYG. O'Hara's pop song: 1918
KKKKATY1918 hit song about "a maid with hair of gold"