Here are the possible solutions for don't tell anyone but clue
Answer
Clue
Relevancy
psst
Clue
"Don't tell anyone, but . . ."
"Don't tell anyone, but..."
Definition
an interjection used to attract attention, also PST
iknowthis
Clue
"Don't tell me, don't tell me!"
lightsabers
Clue
Sci-fi swords (that my older brother actually got to use one time at this place but he had to sign a contract saying he wouldn't tell anyone where they're located)