Related Clues:
- Positive sign from maths class
- Grade refinement
- Paired up to breed
- Matched, as socks
- Added bonus
- Opposite of 37-Across
- It's beneficial
- Favorable factor
- Got together, after a final check
- An advantage; positive
- A bonus
- An advantage
- Bonus luxury finally withdrawn
- And also; a bonus
- Drink about a litre, getting back the advantage