Cryptic crossword clue
People changing sides regularly tend to be deceitful 6

The most common and most likely answer to this crossword clue is the 6 letter word FORKED

I've seen this crossword clue in Independent
F
O
R
K
E
D

Buddy explains!

The straight part
We know that "deceitful" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case deceitful = forked.
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 FORKED mean?

FORKED verb
  1. To divide into two or more branches.
  2. To move with a fork (as hay or food).
  3. To spawn a new child process in some sense duplicating the existing process.
  4. To split a (software) project into several projects.
  5. To split a (software) distributed version control repository
  6. To kick someone in the crotch.
  7. To shoot into blades, as corn does.
FORKED verb
  1. To bale a shaft dry.
FORKED adjective
  1. That splits into two or more directions, or parts.
FORKED verb
  1. To have sexual intercourse, to copulate.
  2. To have sexual intercourse with.
  3. To insert one’s penis, a dildo or other phallic object, into a specified orifice or cleft.
  4. To put in an extremely difficult or impossible situation.
  5. To defraud, deface or otherwise treat badly.
  6. Used to express great displeasure with someone or something.
  7. (usually followed by up) To break, to destroy.
  8. To make a joke at one's expense; to make fun of in an embarrassing manner.
  9. To throw, to lob something. (angrily)
  10. To scold

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