Here are the possible solutions for exchange for a ten clue
Answer
Clue
Relevancy
fives
Clue
Exchange for a ten
Definition
FIVE, a number
four
Clue
Halfway between ten and ten, if you only count to twelve
Definition
the cardinal number next above three
gear
Clue
One of ten on a ten-speed
Definition
to provide with gears (toothed machine parts)
gears
Clue
The ten of a ten-speed
Definition
GEAR, to provide with gears (toothed machine parts)
hundred
Clue
Ten times ten
Definition
a number, ten times ten
jakarta
Clue
City of ten million that’s sinking as much as ten inches a year
santa
Clue
"Ten times ten thousand years from now, he will continue to make glad the heart of childhood" according to a New York Sun editorial of September 21, 1897