Crossword Genius

Hooligans produce crude sketches (6)

Ross

I believe the answer is:

roughs

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'hooligans' is the definition.
Although both the answer and definition are plural nouns, I can't see how they can define each other.

'crude sketches' is the wordplay.
'crude' becomes 'rough' (similar in meaning).
'sketches' becomes 's' (this could be a standard abbreviation I've not previously seen).
'rough'+'s'='ROUGHS'

'produce' acts as a link.

Can you help me to learn more?

(Another definition for roughs that I've seen is " Thugs".)

I've seen this clue in The Globe and Mail.
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