Related Clues:
- Test marks, maybe
- Crosses off
- Choice marks?
- Love letter letters
- Players, in playbooks
- No-frills signatures
- Ballot choices
- State-of-the-art features
- Makes one's mark, maybe
- Pornography letters
- Tic-tac-toe players
- Playbook symbols
- Letters in love letters
- Romantic writing?
- Letters on coaches' chalkboards