The most common and most likely answer to this crossword clue is the 8 letter word HOODWINK
I've seen this crossword clue in The Daily Telegraph
H
O
O
D
W
I
N
K
More clues leading to the result HOODWINK
- Deceive gangster with silent signal
- No kid who plays trick
- Robin to indicate complicity in trick
- Criminal, writing about women, is to mislead
- Cheat to land grand in support of US locality
- Fool — gangster to achieve victory over king
- Gangster confronting flash fool
- Fool making a loud noise about the wicket captured in a cricket match
- Deceive English poet with women in front of kiosk
- Trick signal from Robin?
Buddy explains!

The straight part
We know that "Cheat" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cheat = hoodwink.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 HOODWINK mean?
HOODWINK verb- To deceive by disguise; to dupe, bewile, mislead.
- To cover the eyes with a hood; to blindfold.
- To overshadow something in a way that one is blind or oblivious to it.
- To hide or obscure.