The most common and most likely answer to this crossword clue is the 6 letter word IN-BOX
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More clues leading to the result IN-BOX
Buddy explains!

The straight part
We know that "from where to clear papers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case from where to clear papers = in-box.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 IN-BOX mean?
IN-BOX noun- A container in which papers to be dealt with are put.
- An electronic folder serving the same purpose.
- The aggregate of items that demand one's attention or effort.
- To put (something) in someone's inbox.
- To communicate with (a person) by writing to their electronic inbox.