Atlong

3 clues
___ last!
___ last!" (finally)
___ Last Love," 1938 song
Similar answers:
&tongued
Abetsongs
Acidtongue
Adderstongue
Addingdongs
Aeniongeer
Agelong
Agiantamongmen
Agong
Agreatleap
Agsalong
Albalonga
Allalong
Allalongtheline
Alldaylong
Allnightlong
Allonge
Allsummerlong
Allthatlitters
Allweeklong