The most common and most likely answer to this crossword clue is the 6 letter word CARERS
C
A
R
E
R
S
Buddy explains!
The straight part
We know that "Nurses" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case nurses = carers.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 CARERS mean?
CARERS noun- Someone who regularly looks after another person, either as a job or often through family responsibilities.