The most common and most likely answer to this crossword clue is the 9 letter word CUSTOMERS
I've seen this crossword clue in The Daily Telegraph
C
U
S
T
O
M
E
R
S
More clues leading to the result CUSTOMERS
- Regulars must score when playing
- Service receivers never to be found in the wrong court, with mess unfolding
- Curse most wicked clients
- Rituals welcoming the Queen’s clients
- Buyers must score to get high
- Traditions surrounding Easter empty, but they're always right
- Bespoke gear is oddly removed for clients
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.
What does CUSTOMERS mean?
CUSTOMERS noun- A patron, a client; one who purchases or receives a product or service from a business or merchant, or intends to do so.
- A person, especially one engaging in some sort of interaction with others.