3d - minor change to enduring other provides preservation process (7) - starts with S - no other letters
9a - Holy one before undulating other is sauntering (9) - no letters
2d - in other words, a rustic carnival? (5,4) r???? ???r
9d - Profoundly aware of truncated weapons-carrier (12) - no letters
21a - new approach to tidiness reiterated (8) - ????s?e?
25a - Victorious erstwhile comrades capture employers (5) ????s