The most common and most likely answer to this crossword clue is the 4 letter word JEER
I've seen this crossword clue in The Daily Telegraph
J
E
E
R
More clues leading to the result JEER
- Taunt rich setter, not well
- Taunt from joker, no good person at heart
- Full of energy, Yank’s brief catcall
- Barrack comedian, throwing stone
- Mock professional clown dropping stone
- Mock judge always
- Mock off-road vehicle that’s right for Prince
- No street for joker – bad reception
- Derisive remark from joker, not a good man
- Fool to throw out stone and taunt
Buddy explains!

The straight part
We know that "ridicule" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ridicule = jeer.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 JEER mean?
JEER noun- A mocking remark or reflection.
- (jeer at) To utter sarcastic or mocking comments; to speak with mockery or derision; to use taunting language.
- A gear; a tackle.
- (in the plural) An assemblage or combination of tackles, for hoisting or lowering the yards of a ship.