Unknown quantity in a 10-Down Crossword Clue

 The answer to the crossword clue "Unknown quantity in a 10-Down Crossword Clue" depends on the specific crossword puzzle. However, some possible answers include:

VARIABLE

AMOUNT

SUM

QUANTITY

NUMBER

FIGURE

The specific answer that is correct will depend on the specific crossword puzzle.

Here are some other possible answers that are 3-7 letters long:

UNKNOWN

QUANTITY

QUANTITIES

UNSPECIFIED

UNDEFINED

UNSTATED

I hope this helps! Let me know if you have any other questions.