Judges made case for royal mugs (7)
I believe the answer is:
beakers
'mugs' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe you can see a link between them that I can't see?
'judges made case for royal' is the wordplay.
I cannot really understand how this works, but
'royal' could be 'er' (abbreviation for Elizabeth Regina) and 'er' is located in the answer.
The remaining letters 'beaks' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for beakers that I've seen before include "Flat-bottomed jars" , "Flat-bottomed cups" .)