The most common and most likely answer to this crossword clue is the 7 letter word SATCHEL
I've seen this crossword clue in Independent
S
A
T
C
H
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L
More clues leading to the result SATCHEL
- Shoulder bag in small chalet exploded
- Bag male brought into class after exam
- Bag carried by friends at Chelsea
- Bag carried by fans at Chelsea
- Guevara posed at first with large bag
- Posed with revolutionary by left luggage
- Matches at Chelsea entertaining one carrying books?
- Bag some winnings at Cheltenham
- Bag prizes at Chelsea shows
- Schoolbag thrown about by the class endlessly
Buddy explains!

The straight part
We know that "one carrying books" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one carrying books = satchel.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 SATCHEL mean?
SATCHEL noun- A bag or case with one or two shoulder straps, especially used to carry books etc.