Crossword Genius

Ill-mannered lip comes out in arguments (8)

Ross

I believe the answer is:

polemics

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

'arguments' is the definition.
(I know this)

'ill-mannered lip comes out' is the wordplay.
'lip comes' can be anagrammed to 'POLEMICS'.
However, I'm unsure how this is indicated.

'in' is the link.

Can you help me to learn more?

(Other definitions for polemics that I've seen before include "arguments" , "Complies with verbal attacks on opinions" , "Compiles into verbal attacks on beliefs" .)

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