Playing piccolo, Lara becomes compulsive swearer (11)

I believe the answer is:

coprolaliac

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

'becomes compulsive swearer' is the definition.
I can't tell whether this defines the answer.

'playing piccolo lara' is the wordplay.
'playing' is an anagram indicator.
'piccolo'+'lara'='piccololara'
'piccololara' with letters rearranged gives 'COPROLALIAC'.

Can you help me to learn more?

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.