A Sonnet by This Arrant Bard, an Other

A sonnet by this arrant bard, an other, whose sole half-brother, a real piece of work, and single parent (mother like no other!), together were no warm nor loving perk. In her heart, mother disowned me in life. My younger half-brother begrudged my genius, whilst being a rival who sowed seeds of strife, in mother, against me (how very jealous was he?). But I, an outright bard, complete and sheer, make their dysfunction a rhymed affair to exorcise these memories: defeat this duo by whom I'm “an other” in despair!? But if I could return my estranged mother, I still wouldn't—and call my half-sibling, “Brother!”