The most common and most likely answer to this crossword clue is the 5 letter word ZEROS
Z
E
R
O
S
Buddy explains!
The straight part
We know that "nothings" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case nothings = zeros.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ZEROS mean?
ZEROS noun- The numeric symbol that represents the cardinal number zero.
- The digit 0 in the decimal, binary, and all other base numbering systems.
- Nothing, or none.
- The value of a magnitude corresponding to the cardinal number zero.
- The point on a scale at which numbering or measurement originates.
- A value of the independent variables of a function, for which the function is equal to zero.
- The additive identity element of a monoid or greater algebraic structure, particularly a group or ring.
- A person of little or no importance.
- A Mitsubishi A6M Zero, a long range fighter aircraft operated by the Japanese Navy Air Service from 1940 to 1945.
- A setting of calibrated instruments such as a firearm.
- A security which has a zero coupon (paying no periodic interest).