Possible Clues:

• Open stove topping hollow pastry dish
• Silver pressing on primate's Christian love
• Shocked seeing space in hospital department
• Open-mouthed, Georgia's overwhelmed by primate
• Space found in A&E: surprised?
• Amazed, mouthwise
• Displaying astonishment
• Looking floored
• Looking astonished as assistant's back in time
• With mouth wide open a cavity's visible finally