Take the IELTS na lang uli po...strict ang Australia sa IELTS lalo na kung ang nominated occupation ay academic đŸ™‚ They're also strict about your qualifications. Kung ang work experience niyo ay pang senior level na, hindi kayo papayagan kumuha ng mas mababa para lang makuha yung trabaho.
Another work-around would be to nominate a different occupation that does not require an IELTS 7...like...a welder for example. When you get your visa, go to Australia and apply for work as a teacher. Of course, the downside to that is you need to substantiate the other occupation so you get a positive assessment.