Answer: stopup

AnswerCrossword Clue
STOPUP

Clog

STOPUP

Visit the penthouse

STOPUP

Prevent drainage in

STOPUP
Clog, as a drain
STOPUP
Stick a cork in
STOPUPPlug
STOPUPObstruct.
STOPUPClog.
STOPUPPlug.
STOPUPBlock: Colloq.
STOPUPPlug, as a hole
STOPUPPut a cork in