The most common and most likely answer to this crossword clue is the 6 letter word TRAITS
T
R
A
I
T
S
Buddy explains!

The straight part
We know that "features" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case features = traits.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 TRAITS mean?
TRAITS noun- An identifying characteristic, habit or trend.
- An uninstantiable collection of methods that provides functionality to a class by using the class’s own interface.