The most common and most likely answer to this crossword clue is the 7 letter word WAITERS
I've seen this crossword clue in The Daily Telegraph
W
A
I
T
E
R
S
More clues leading to the result WAITERS
Buddy explains!
The straight part
We know that "Those who might want a tip" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case those who might want a tip = waiters.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 WAITERS mean?
WAITERS noun- A male or female attendant who serves customers at their tables in a restaurant, café or similar.
- Someone who waits for somebody or something; a person who is waiting.
- A person working as an attendant at the London Stock Exchange.
- A vessel or tray on which something is carried, as dishes, etc.; a salver. (See etymology of dumbwaiter.)
- A custom house officer; a tide waiter.
- A watchman.