Crossword Genius

Try class warfare for posh glassware (8)

Ross

I believe the answer is:

crystals

I'm a little stuck... Click here to teach me more about this clue!

'warfare for posh glassware' is the definition.
I can't judge whether this definition defines the answer.

'try class' is the wordplay.
'try class' can be anagrammed to 'CRYSTALS'.
However, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for crystals that I've seen before include "Pieces of colourless transparent quartz" , "Clear transparent minerals, especially quartz" , "Particles of a clear transparent mineral" , "Fragments of transparent quartz" , "Clear quartz pieces" .)

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app