The most common and most likely answer to this crossword clue is the 6 plus 4 letter word TOILET ROLL
I've seen this crossword clue in The Guardian
T
O
I
L
E
T
R
O
L
L
More clues leading to the result TOILET ROLL
- A poet upset by annoying poster paper supplier
- “L’Ogre” by Parisian solver? It’s panned!
- Author’s written about giant cylindrical object
- Internet abuser after material — one means to scrape the bottom
- Paper in circulation that won’t get read!
- Work by English rector in charge of sheets?
- Business Paper?
- Means to wipe material linked to online problem
Buddy explains!
The straight part
We know that "sheets" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sheets = toilet roll.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.