The most common and most likely answer to this crossword clue is the 10 letter word CENTREFOLD
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Buddy explains!

The straight part
We know that "Possibly a nude" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case possibly a nude = centrefold.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 CENTREFOLD mean?
CENTREFOLD noun- The single sheet of paper that forms the middle two pages of a magazine or other publication.
- A large photograph printed on this sheet, typically in the form of a nude, or provocatively dressed, sexually attractive woman or man.
- The person appearing in such a photograph.
- Any very sexually attractive person, who is therefore material for such a photograph.