I got to act right for her like I'm an author

Meaning

This is an intricate play on the right/write homophone:

Common is an author, having published his memoir ‘One Day It’ll All Make Sense’ in 2011. It’s title is borrowed from Com’s 1997 album of the same name. Many authors are viewed as upstanding people by society and thus have to act suitably when they’re around people in public.
Common acted in romantic comedy ‘Just Wright’ in 2010, alongside Queen Latifah. Authors write, and good ones do it just right.

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