The most common and most likely answer to this crossword clue is the 5 letter word CASTE
C
A
S
T
E
More clues leading to the result CASTE
- Class left out of big house
- Head of chemistry has a way with English class
- Particular group may be performers with energy
- Class of individuals banned from CIA site
- Actors taking English class
- Order shed to be picked up
- Character keeps time in class
- Class group of players: 22
- Class players, English
- Class teacher initially involved in court action
Buddy explains!

The straight part
We know that "Class" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case class = caste.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 CASTE mean?
CASTE noun- Any of the hereditary social classes and subclasses of South Asian societies.
- A separate and fixed order or class of persons in society who chiefly associate with each other.
- A class of polymorphous eusocial insects of a particular size and function within a colony.