Nowhere near fifty, Australian restrained, first of all (3)
I believe the answer is:
far
'nowhere near' is the definition.
(far away)
'fifty australian restrained first of all' is the wordplay.
'first of all' says to take the initial letters.
The initial letters of 'fifty australian restrained' is 'FAR'.
(Other definitions for far that I've seen before include "At a great distance way" , "Distant" , "Remote" , "Very much" , "A long, long way to go" .)