Cazorla opened the scoring in the sixth minute, but Villa came back strongly and equalised through Andreas Weimann after the break.
Arsenal threw everything at Paul Lambert's man, but they could not find a way past Brad Guzan until Cazorla found the net with five minutes remaining - saving his manager from another ear-bashing from the supporters who have started to doubt whether the Frenchman is the right man to lead the club forward.
