Answer:

lecture

Answer	Crossword Clue
LECTURE	Something delivered by a professor or angry parent
LECTURE	Professor's spiel
LECTURE	Dressing-down

LECTURE	Professor's talk
LECTURE	Guest speaker's address
LECTURE	Topical speech
LECTURE	Professorial talk
LECTURE	Professor's discourse
LECTURE	Formal talk
LECTURE	Seminar feature
LECTURE	Hall event

LECTURE	Long warning
LECTURE	College event.
LECTURE	Wigging.
LECTURE	Discourse.
LECTURE	College teaching technique.
LECTURE	Scold at length.
LECTURE	Professor's forte.
LECTURE	Address.

LECTURE	Formal scolding
LECTURE	Kind of college course
LECTURE	Have on the carpet
LECTURE	Preach
LECTURE	Prof's offering
LECTURE	Professorial forte
LECTURE	Tedious reprimand
LECTURE	Sermonize

LECTURE	Stern reprimand
LECTURE	Seminar alternative
LECTURE	Talk that might put one to sleep
LECTURE	Talking-to
LECTURE	TED talk, e.g.
LECTURE	Preachy talk
LECTURE	Stern talking to
LECTURE	Stern talking to, sometimes

LECTURE	A professor may give it
LECTURE	Chastisement
LECTURE	Chalk talk, e.g.
LECTURE	Prof production
LECTURE	College delivery