Related Clues:
- Professional record with upper-class English in introduction
- Prelude; advance
- Introduction to a play or story
- Proposal concerning trade union engineers
- Professional record heard in introduction
- Oratorio opener, often
- Open University about to make an offer
- What may precede Chapter 1 in a novel
- Introductory section (of, eg, a play)
- Approach conspicuous river
- Approach an orchestral piece
- Against entering rocky route on approach
- When an opera's musical themes may be established
- Approach public on river
- Rule out dropping contralto for opening