The most common and most likely answer to this crossword clue is the 7 letter word ADDENDA
A
D
D
E
N
D
A
More clues leading to the result ADDENDA
- Append final note — one of these?
- Notice and study prosecutor's further words
- Lawyer after anger discounting thousand extra items
- Dada’s wrong about last epilogues
- Dean puzzled after a theologian brings extra bits
- Supplements for the dead and injured
- Promotional material, subsequently upheld, to include final further items
- Notice study with Russian’s affirmative supplementary notes
- Extras dead and gone
- Snake’s short and twisted appendages
Buddy explains!

The straight part
We know that "appendages" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case appendages = addenda.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ADDENDA mean?
ADDENDA noun- Something to be added; especially text added as an appendix or supplement to a document.
- A postscript.
- The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.