EARPIECE

• Audio accessory

• Cap part

• Cell phone accessory

• Component of some caps

• Eyeglasses part

• Hearing aid part

• Operator's need

• Phone part

• Secret Service agent's accouterment

• Spy's aid

• Standard-issue item for a Secret Service agent

• Ultimately 12A a strange recipe for certain receiver (8)

• Electro-acoustic transducer for converting electric signals into sounds

• It is held over or inserted into the ear