Crossword Genius

Our vet is upset, becoming glassy (8)

Ross

I believe the answer is:

vitreous

'glassy' is the definition.
(I know that glassy can be written as vitreous)

'our vet is upset' is the wordplay.
'upset' is an anagram indicator.
'our'+'vet'+'is'='ourvetis'
'ourvetis' anagrammed gives 'VITREOUS'.

'becoming' acts as a link.

(Other definitions for vitreous that I've seen before include "Made of glass" , "Glassy" , "How glaze appears" , "Resembling glass - over suit (anag)" , "Like glass" .)

I've seen this clue in The Times.
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