The most common and most likely answer to this crossword clue is the 5 letter word GUYED
I've seen this crossword clue in Financial Times
G
U
Y
E
D
More clues leading to the result GUYED
Buddy explains!

The straight part
We know that "subjected to ridicule" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case subjected to ridicule = guyed.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 GUYED mean?
GUYED adjective- Fitted with or attached to a guy.
- Fitted to serve as a guy.
- To exhibit an effigy of Guy Fawkes around the 5th November.
- To make fun of, to ridicule with wit or innuendo.
- To play in a comedic manner.
- To equip with a support cable.