jono, prospero
re redaction - summary from your exchanges:
1. Clues that cross the answers are redacted.
2. The specific word that contains a letter from solution is redacted.
3. If multiple letters of solutions occur in the lights or otherwise, words containing those are redacted.
jono, re 25/3 I guess that could be a definition; I also thought of the 8 word stuff, but, as you say, word-lengths don't match.
Will add, "perhaps": true, solution, new, steam to your collection.