The most common and most likely answer to this crossword clue is the 7 letter word SALUTES
I've seen this crossword clue in The Daily Telegraph
S
A
L
U
T
E
S
More clues leading to the result SALUTES
- Acknowledges characters involved in a tussle
- Commends regiment that has captured large truck
- Playing back stringed instruments shows respect for rank
- Honours music makers from South Africa
- Shows rank subservience
- Pays tribute to old music makers supporting appeal
- Greets special soldiers with musical instrument’s introduction
- Greets a lieutenant taking turn with me at last in ship
Buddy explains!

The straight part
We know that "Greets" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case greets = salutes.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 SALUTES mean?
SALUTES verb- To make a gesture in honor of (someone or something).
- To act in thanks, honor, or tribute; to thank or extend gratitude; to praise.
- To wave, to acknowledge an acquaintance.
- To address, as with expressions of kind wishes and courtesy; to greet; to hail.
- To promote the welfare and safety of; to benefit; to gratify.
- To kiss.