The most common and most likely answer to this crossword clue is the 7 letter word DEBRETT
I've seen this crossword clue in The Guardian
D
E
B
R
E
T
T
More clues leading to the result DEBRETT
- Noble reference that would appear had better be drastically reversed
- Door’s opening, better frantically peer in here?
- Old publisher, strange breed never boozing
- Old publisher and editor turning on the silly office supervisor
- Book with more than one title
- Peerage in which we see uncommon breed and race meeting
Buddy explains!

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.