The most common and most likely answer to this crossword clue is the 6 letter word ASPECT
I've seen this crossword clue in Independent
A
S
P
E
C
T
More clues leading to the result ASPECT
- Poisonous sort given shocking treatment shows face
- Expression when kissed reportedly
- Side holding power in a splinter group
- A religious group will constrain person's initial view
- Appearance of muscle, in a way
- Look at technical details coming in
- Face of donkey kissed noisily
- Face idiot kissed audibly
- Look — a ghost about to disappear!
- A cult hiding priest’s face
Buddy explains!

The straight part
We know that "appearance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case appearance = aspect.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 ASPECT mean?
ASPECT noun- Any specific feature, part, or element of something.
- The way something appears when viewed from a certain direction or perspective.
- The way something appears when considered from a certain point of view.
- A phase or a partial, but significant view or description of something.
- One's appearance or expression.
- Position or situation with regard to seeing; that position which enables one to look in a particular direction; position in relation to the points of the compass.
- Prospect; outlook.
- (grammar) A grammatical quality of a verb which determines the relationship of the speaker to the internal temporal flow of the event which the verb describes, or whether the speaker views the event from outside as a whole, or from within as it is unfolding.
- The relative position of heavenly bodies as they appear to an observer on earth; the angular relationship between points in a horoscope.
- The personified manifestation of a deity that represents one or more of its characteristics or functions.
- The act of looking at something; gaze.
- Appearance to the eye or the mind; look; view.
- In aspect-oriented programming, a feature or component that can be applied to parts of a program independent of any inheritance hierarchy.
- The visual indication of a colour light (or mechanical) signal as displayed to the driver. With colour light signals this would be red, yellow or green.
- (of a planet) To have a particular aspect or type of aspect.
- To channel a divine being.
- To look at.