Answer: supplement

AnswerCrossword Clue
SUPPLEMENTSunday paper feature.
supplementA part added to a book to provide further or corrected information but separate from the main body of the text
supplementSomething that completes or enhances something else when added to it
supplementto add or serve as a supplement to
supplementA substance taken to remedy the deficiencies in a person's diet
supplementA separate section, esp. a color magazine, added to a newspaper or periodical
supplementThe amount by which an angle is less than 180░