The most common and most likely answer to this crossword clue is the 5 letter word COMBO
I've seen this crossword clue in Independent
C
O
M
B
O
More clues leading to the result COMBO
- Search round for dance band?
- Group beginning to bathe in lake
- Musical group straighten out Beethoven's Sixth
- Tease old group of players
- Old doctor entering company group
- Search round for small band
- Mob dancing in company stumping performers
- Smooth old jazzmen
- Search round for a small jazz band
- Trump’s hairstyle cryptically is a mixture of things
Buddy explains!

The straight part
We know that "group" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case group = combo.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 COMBO mean?
COMBO noun- A small musical group.
- A combination.
- An action composed of a sequence of simpler actions, especially a composite attacking move in a fighting game.
- A Caucasian man who marries or has a sexual relationship with an Aboriginal woman; a Caucasian man who lives among Aboriginal people and adopts Aboriginal culture
- A combo box.