Related Clues:

• Not heads
• Obverse call?
• Two are better than one, they say
• Prehensile parts of seahorses
• Goes in the direction of
• Trains those engaged in surveillance
• Half chance of landing in a spin
• Coin flip choice
• Alternative to heads
• What did you say, you tosser?
• Side of a coin; formal attire
• Smart coats some men put on dogs
• Leads or follows? It's decided by tossing a coin
• Pursues one of two options?
• Principal teachers