The Observer's view of who's calling Grace O'Malley's visual aid for a close up?
I believe the answer is:
spyglass
'the observer's view' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for spyglass that I've seen before include "viewer" , "little scope" , "that magnifies" , "he can see through it!" , "See-through article" .)