Related Clues:
- Stock - basic - flag
- Normal - colours
- Flag - accepted level
- Flag - norm
- Accepted model - flag
- Established model - flag
- Criterion, touchstone
- Road slope
- Cyclist's challenge
- Approved model
- Flag for 24 across, maybe, also in commendation end to end
- Mark on a paper
- Letter from a teacher?
- Reference point
- F, e.g