Here are the possible solutions for just a single time clue
Answer
Clue
Relevancy
once
Clue
Just a single time
Definition
one time
onehitnders
Clue
They make you remember a single single
are
Clue
"Just The Way You ___" (Bruno Mars's debut single)
Definition
a unit of metric land measure
etaoin
Clue
"___ shrdlu" (nonsense phrase of old type-setting lore which has an interesting backstory but I can't do it justice in the space of a single clue even a long one like this so yeah it's just kind of a
howsoonisnow
Clue
1985 Smiths single with the line "I am human and I need to be loved / Just like everybody else does"
igotitgoinon
Clue
Tone Loc single released just after "Funky Cold Medina"