AP, PERTH, AustraliaOffspinner Nathan Lyon spun Australia to victory in the series-opening Test as New Zealand slumped to a heavy defeat on day 4 under lights yesterday. Watling (40) appeared to be settling, Lyon had Nicholls caught by Travis Head at silly-point to end a 66-minute resistance by the fifth-wicket pair. Australia declared their second innings on 217-9, with Tim Southee taking 5-69. Azam also added to his burgeoning reputation as one of world’s top upcoming batsmen, completing his third Test hundred after knocks of 104 and 97 in his previous two Tests in Australia. Abid, who scored a ton in his ODI debut against Australia in Dubai in March, remained unbeaten on 109 while Azam was 102.