| Clue | Length | Answer |
|---|---|---|
| addendum | 2 letters | ps |
| addendum | 3 letters | tag |
| addendum | 5 letters | rider |
| addendum | 6 letters | suffix |
| addendum | 7 letters | refrain |
| addendum | 8 letters | sequitur |
| addendum | 8 letters | appendix |
| addendum | 9 letters | tailpiece |
| addendum | 9 letters | subscript |
| addendum | 9 letters | secondary |
| addendum | 9 letters | swan-song |
| addendum | 9 letters | appendage |
| addendum | 10 letters | complement |
| addendum | 10 letters | supplement |
| addendum | 10 letters | annexation |
| addendum | 10 letters | side-issue |
| addendum | 10 letters | postscript |
| addendum | 10 letters | subsidiary |
| addendum | 11 letters | unessential |
| addendum | 11 letters | improvement |
| addendum | 11 letters | concomitant |
| addendum | 11 letters | side-effect |
| addendum | 11 letters | desideratum |
| addendum | 11 letters | acquisition |
| addendum | 13 letters | reinforcement |
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