The most common and most likely answer to this crossword clue is the 5 letter word GROUP
G
R
O
U
P
More clues leading to the result GROUP
- Set to become adult, losing weight
- Where lots go in Scotland following grand mass
- Set to reach maturity, needing to shed weight
- Band of Greek publishers
- Rise, having adopted Republican party
- Band involved in aggro, upset
- Collective 15, perhaps
- Set to enter university without one part of basic education
- Band take off, covering Queen
- Mature women will desert Take That, perhaps
Buddy explains!

The straight part
We know that "Set/Set" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case set/set = group.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 GROUP mean?
GROUP noun- A number of things or persons being in some relation to one another.
- A set with an associative binary operation, under which there exists an identity element, and such that each element has an inverse.
- An effective divisor on a curve.
- A (usually small) group of people who perform music together.
- A small number (up to about fifty) of galaxies that are near each other.
- A column in the periodic table of chemical elements.
- A functional group.
- A subset of a culture or of a society.
- An air force formation.
- A collection of formations or rock strata.
- A number of users with same rights with respect to accession, modification, and execution of files, computers and peripherals.
- An element of an espresso machine from which hot water pours into the portafilter.
- A number of eighth, sixteenth, etc., notes joined at the stems; sometimes rather indefinitely applied to any ornament made up of a few short notes.
- A set of teams playing each other in the same division, while not during the same period playing any teams that belong to other sets in the division.
- A commercial organization.
- To put together to form a group.
- To come together to form a group.