The most common and most likely answer to this crossword clue is the 6 letter word TORQUE
I've seen this crossword clue in The Times
T
O
R
Q
U
E
More clues leading to the result TORQUE
- Necklace queen’s wearing removed by force
- Force of lecture on the radio
- Force to remove tangerine rind from roquette salad
- Neckwear that’s almost too risqué is banned
- Force to make speech to audience
- In alternator, questionable force
- Audibly speak for force
- Force of speech for the audience
- Force to speak out loud
- Force conversation for the audience
Buddy explains!

The straight part
We know that "Necklace" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case necklace = torque.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 TORQUE mean?
TORQUE noun- A rotational or twisting effect of a force; a moment of force, defined for measurement purposes as an equivalent straight line force multiplied by the distance from the axis of rotation (SI unit newton metre or Nm; imperial unit pound-foot or lb·ft, not to be confused with the foot pound-force, commonly "foot-pound", a unit of work or energy)
- To twist or turn something.
- A tightly braided necklace or collar, often made of metal, worn by various early European peoples.