The most common and most likely answer to this crossword clue is the 5 letter word EBOOK
I've seen this crossword clue in The Daily Telegraph
E
B
O
O
K
Buddy explains!
The straight part
We know that "something to read" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case something to read = ebook.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 EBOOK mean?
EBOOK noun- (authorship) Electronic book, a book published in electronic form.