The most common and most likely answer to this crossword clue is the 6 letter word INSECT
I've seen this crossword clue in The Times
I
N
S
E
C
T
More clues leading to the result INSECT
- Bug popular dissenting group
- Small photo capturing start of county cricket, for example
- Removing piano, examine bug
- Praying mantis, say, as part of religious group?
- Where one might see some transcendentalists fly?
- Heartless vet’s a loathsome creature
- Maybe fly home with group of believers
- Examine heartless, wretched person
- Maybe fly home — southeast Connecticut
- Maybe cricket’s stylish division
Buddy explains!

The straight part
We know that "bug" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bug = insect.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 INSECT mean?
INSECT noun- An arthropod in the class Insecta, characterized by six legs, up to four wings, and a chitinous exoskeleton.
- Any small arthropod similar to an insect including spiders, centipedes, millipedes, etc
- A contemptible or powerless person.