Crossword Genius

Leave university with a revolutionary painting technique (7)

Ross

I believe the answer is:

gouache

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

'painting technique' is the definition.
(I've seen this before)

'leave university with a revolutionary' is the wordplay.
'leave' becomes 'go'.
'university with' becomes 'u' (I can't explain this - if you can you should give a lot more credence to this answer).
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'go'+'u'+'a'+'che'='GOUACHE'

Can you help me to learn more?

(Other definitions for gouache that I've seen before include "Painting technique also called body colour" , "Painting with colours mixed with gum" , "Method of painting" , "Watercolour painting with opaque colours" , "Opaque watercolour paint" .)

I've seen this clue in The Times.
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