The most common and most likely answer to this crossword clue is the 3 letter word BUG
I've seen this crossword clue in The Daily Telegraph
B
U
G
More clues leading to the result BUG
Buddy explains!
The straight part
We know that "Visibly shocked" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case visibly shocked = bug.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 BUG mean?
BUG noun- An insect of the order Hemiptera (the “true bugs”).
- Any of various species of marine or freshwater crustaceans; e.g. a Morton Bay bug, mudbug.
- Any insect, arachnid, or other terrestrial arthropod that is a pest.
- Any insect, arachnid, myriapod or entognath.
- (chiefly computing and engineering jargon) A problem that needs fixing.
- A contagious illness; a bacterium or virus causing it
- An enthusiasm for something; an obsession
- A keen enthusiast or hobbyist.
- A concealed electronic eavesdropping or intercept device
- A small and usually invisible file (traditionally a single-pixel image) on a World Wide Web page, primarily used to track users.
- A small, usually transparent or translucent image placed in a corner of a television program to indicate what network or cable channel is televising it
- A manually positioned marker in flight instruments.
- A semi-automated telegraph key.
- Hobgoblin, scarecrow; anything that terrifies.
- ("the bug") HIV.
- A limited form of wild card in some variants of poker.
- A trilobite.
- A young apprentice jockey.
- To annoy.
- To install an electronic listening device or devices in.
- A microfossil, particularly a foraminiferan.