The most common and most likely answer to this crossword clue is the 4 letter word CHEF
I've seen this crossword clue in The Times
C
H
E
F
More clues leading to the result CHEF
- Hotel employee’s companion returned iron
- A revolutionary force in the kitchen?
- Recipe expert: he is beset by Celsius and Fahrenheit
- Head of kitchen first to lose heart
- Who might stock lazy Susan
- Boss getting rid of one restaurant worker
- Revolutionary female cook
- Compare entertaining ambassador and cook
- Restaurant employee has red face, lacking good service
- Head guy sacks one cook
Buddy explains!

The straight part
We know that "A revolutionary force in the kitchen?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a revolutionary force in the kitchen? = chef.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 CHEF mean?
CHEF noun- The presiding cook in the kitchen of a large household.
- The head cook of a restaurant or other establishment.
- Any cook.
- One who manufactures illegal drugs; a cook.
- A reliquary in the shape of a head.
- To work as a chef; to prepare and cook food professionally.
- To stab with a knife, to shank, to lacerate with a rambo.