Answer: indisguise

AnswerCrossword Clue
INDISGUISE

Keeping a low profile

INDISGUISE

Like Sherlock Holmes, sometimes

INDISGUISE

Masked, say

INDISGUISE
Wearing a false mustache, say
INDISGUISE
Wearing a costume, say
INDISGUISELike attendees at a masquerade party
INDISGUISEAt a costume party, maybe