Supplements (7 letters)

{ Answer }

ADDENDA

{ Related Clues }

Afterthoughts
Appendices
Appendixes
Extras
Riders
Book appendixes
Book ends?
Book supplements
Dictionary section
Supplemental material
Supplementary material
Tack-ons
Back-of-the-book list
End-of-book matter
Extra pages, say
Last-minute writings

{ Tags }

addenda, afterthoughts, appendices, appendixes, back, book, end, ends, extra, extras, last, list, material, matter, minute, pages, riders, say, supplementary, supplements, writings

{ Notes }

The answer ADDENDA is seen occasionally, appearing about once every 700 puzzles.

{ Definition }

ADDENDUM as a noun:

1. (addendum, supplement, postscript) = textual matter that is added onto a publication; usually at the end