The 1983 boxed set has lots of clear-cut Good and Evil.
As mentioned upthread, the map in the chapter Regional Alignments divides up the world into good, evil, and neutral lands. Demi-humans are good and humanoids (and many other monsters) are evil. There are good and evil gods.
"Furyondy and Veluna in the central Flanaess are strong in the cause of justice and good."
Belvor IV, the king of Furyondy, "is a most noble and just king".
"The Archclericy of Veluna has long been a shining example of the better side of humankind in the Flanaess. Since the state became independent, it has treated fairly and justly with its neighbors and championed the cause of righteousness everywhere."
"Knighthood in any branch of the Order of the Hart is bestowed only upon freemen and gentlefolk seeking the weal of the states which they are dedicated to uphold and defend. Furthermore, each candidate must be a proven fighter and have performed an act of exceptional honor, bravery, courage, and service."
"Heironeous is the champion of rightful combat and chivalrous deeds. Likewise he is the deity of those who fight for honor and strive for order and justice… Worshippers of Heironeous are found everywhere, but particularly where those who follow military professions or do heroic deeds are found is a chapel of this deity likely to be found."
"Once the most powerful force for order and good, the Aerdians have declined over the last century to an unspeakable state of decadency. After a millenium of leadership, its rulers and nobles turned to evil and irrationality."
The land of Iuz is "steeped in wickedness and evil".
"Many humans of evil nature, and some humanoids as well, pay homage to Nerull. Assassins and thieves often regard this deity as a patron. In wicked lands, temples and cathedrals of Nerull are openly operated… The worship of Nerull is done in full darkness. The litany is ghastly, being of death and suffering. Human sacrifice is common."
"The Temple of Elemental Evil" couldn’t be much more explicit.
The Mother, a strange ooze monster from the Lost Passage of the Suloise mini-adventure in the Glossography, "is virtually a physical embodiment of evil, radiating vileness and wickedness".
Drow are "selfish and cruel." (Fiend Folio)
Meenlocks, monsters that appear in the Sea of Dust encounter tables in the Glossography, are "highly evil and greatly desirous of wreaking vengeance on humankind." (Fiend Folio)