The most common and most likely answer to this crossword clue is the 9 letter word EXAMINEES
I've seen this crossword clue in The Guardian
E
X
A
M
I
N
E
E
S
More clues leading to the result EXAMINEES
- Former French friend observed turning up — they’d have testing time
- Sometime in the morning I spotted returning candidates
- They hope to pass morning in Spain surrounded by old lovers
- They may pass on what they know
- A setter’s visiting old flames – they’re being marked
- Candidates noticed huge screen revolving after start of election
- Candidates name exes I harassed
Buddy explains!

The straight part
We know that "Candidates" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case candidates = examinees.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 EXAMINEES mean?
EXAMINEES noun- The one who is examined.