Spellbound by expensive metal ring on grandma's nose (4)
I believe the answer is:
agog
'spellbound' is the definition.
(I've seen this in another clue)
'expensive metal ring on grandma's nose' is the wordplay.
'expensive metal' becomes 'ag' (silver. I am not sure about the 'expensive' bit.).
'ring' becomes 'O' (O is the shape of a ring).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'nose' indicates taking the first letters (nose can mean the front of something).
The initial letter of 'grandmas' is 'g'.
'ag'+'o'+'g'='AGOG'
'by' is the link.
Can you help me to learn more?
(Other definitions for agog that I've seen before include "Very curious to hear" , "Enthralled" , "On tenterhooks" , "on the edge of your seat" , "Perfect" .)