Cryptic crossword clue
So I initially back up nonfiction works 4

The most common and most likely answer to this crossword clue is the 4 letter word BIOS

B
I
O
S

Buddy explains!

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 BIOS mean?

BIOS noun
  1. Biographical sketch
  2. Bioscope; cinema
BIOS noun
  1. A person's life story, especially one published.
  2. The art of writing this kind of story.
BIOS noun
  1. The study of all life or living matter.
  2. The living organisms of a particular region.
  3. The structure, function, and behavior of an organism or type of organism.
BIOS noun
  1. In the philosophy of Giorgio Agamben, a particular mode of life; "qualified life", as opposed to the bare life or zoe.

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