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Related Clues:
- 'Go' signal, maybe
- Cain was exiled to the Land of ____
- Subtle auction signal
- Signal agreement? Homer sometimes did
- Signal 65 Across
- Clinton opponent Dole
- Short haircut, and a hint to 17-, 25-, 43- and 54-Across
- Movement at a boring concert?
- Start to fall asleep — lecturer is taken aback
- Bob and Maria left main road
- Head gesture of agreement
- Signify consent
- Retired lecturer gives approval
- Returning academic gets sign of approval
- Silent assent lecturer backs