The most common and most likely answer to this crossword clue is the 7 letter word PERUSAL
I've seen this crossword clue in The Times
P
E
R
U
S
A
L
More clues leading to the result PERUSAL
- Country girl’s examination
- Study country’s Article 50
- Chum that’s certain to be tied up in study
- Certain to return, enthralled by friend reading
- Reading, putting ring round two references to the Queen?
- Friend's clothing certain to come up for inspection
- Erecting a little cupola sure provides a view
- Reading-Paddington’s home straits, approaching London primarily
- Study reviewed Spaniard’s article on SA country
- Country and its location left for study
Buddy explains!

The straight part
We know that "reading" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case reading = perusal.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 PERUSAL mean?
PERUSAL noun- The act of perusing; studying something carefully.