Answer: delusion

AnswerCrossword Clue
DELUSION

It may be one of grandeur

DELUSION

Pipe dream

DELUSION

Aspect of paranoia

DELUSION
False belief
DELUSIONFalse belief.
DELUSION
Snare's partner
DELUSIONSelf-deception
DELUSIONMistaken opinion
DELUSIONMisconception