Answer: lateriser

AnswerCrossword Clue
LATERISER

One slow to get up

LATERISER

Lazybones, perhaps

LATERISER

Many a night owl

LATERISER
One who sleeps in
LATERISER
One who's not up at noon
LATERISERSlugabed
LATERISEREarly bird's opposite
LATERISERLie-abed
LATERISEROne unlikely to be alarmed?