The most common and most likely answer to this crossword clue is the 6 letter word CURSOR
I've seen this crossword clue in The Times
C
U
R
S
O
R
More clues leading to the result CURSOR
- One swearing aloud, finding something on computer screen
- Screen feature not entirely superficial
- Something on one's computer screen, one swearing out loud?
- What’s this on my screen, I hear one swearing
- Dogs and soldiers that may appear on computer screen
- On-screen presence who swears aloud
- Blinking thing perhaps gets one effing and blinding loudly
- Mutt set on angry tailless pointer
- Aggressive dog almost hurting pointer
- a One swearing in audition shows on-screen presence
Buddy explains!

The straight part
We know that "Screen feature" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case screen feature = cursor.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 CURSOR mean?
CURSOR noun- A part of any of several scientific instruments that moves back and forth to indicate a position
- A moving icon or other representation of the position of the pointing device
- An indicator, often a blinking line or bar, indicating where the next insertion or other edit will take place
- A reference to a row of data in a table, which moves from row to row as data is retrieved by way of it
- A design pattern in object oriented methodology in which a collection is iterated uniformly
- To navigate by means of the cursor keys.