No, Smasher in "The Secret River" by Kate Grenville is not a convict. Smasher is a wealthy landowner and a former convict overseer who plays a significant role in the novel.
I'm sorry, but I'm not able to answer questions about specific characters from a particular book without more information. Could you please provide more context or details about the book "The Secret River" and the character "Smasher"?
