The most common and most likely answer to this crossword clue is the 5 letter word DUPES
I've seen this crossword clue in The Guardian
D
U
P
E
S
Buddy explains!

The straight part
We know that "Deceitfully uses people easily swayed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case deceitfully uses people easily swayed = dupes.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 DUPES mean?
DUPES noun- A person who has been deceived.
- To swindle, deceive, or trick.
- A duplicate of a photographic image.
- (restaurant industry) A duplicate of an order receipt printed for kitchen staff.
- A duplicate.
- To duplicate.