Protection, for example in Australian Institute of Sport (5)
I believe the answer is:
aegis
'protection' is the definition.
(aegis can mean someone's guidance or protection)
'example in australian institute of sport' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'in' indicates putting letters inside.
'australian' becomes 'A' (common abbreviation).
'institute of sport' becomes 'is' (I can't justify this - if you can you should believe this answer much more).
'a'+'is'='ais'
'eg' inserted inside 'ais' is 'AEGIS'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for aegis that I've seen before include "Kindly endorsement and guidance" , "Backing or support" , "Protection - patronage" , "Advocacy" , "strong defence" .)