Answer: thicken

AnswerCrossword Clue
THICKEN

What the plot may do

THICKEN

What plots may do

THICKEN

Grow more profound, as a plot

THICKEN
Get complicated, as a plot
THICKEN
Get set?
THICKENWhat a plot may do
THICKENUse roux
THICKENSet
THICKENAdd cornstarch to