Possible Clues:

• One calls for item hidden in mask
• Person making call to protect it with face-saving device
• He calls for it in a flap, to save face
• One might come to stay with it in what's over the eyes
• Drop-in
• When calling, one may have rung the bell
• Foreign tourist hid it in face-mask
• It is to be found calling in what goes over the eyes
• It's not for the resident to cover the eyes around it
• Company produces sun screen protecting child at play