Shout "Stop," dislodging a learner's nice glasses (7)
I believe the answer is:
crystal
'nice glasses' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'shout stop dislodging a learner's' is the wordplay.
I cannot quite see how this works, but
'shout' could be 'cry' (synonyms) and 'cry' is found within the answer.
'a' is present in the answer.
'learner' could be 'l' (as in a learner driver with L-plates on their car) and 'l' is located in the answer.
The remaining letters 'st' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for crystal that I've seen before include "brilliant stuff" , "Glass-like quartz" , "Quartz glass" , "Type of clear-cut, lucent glass" , "Transparent mineral" .)