English companion with writer recalled Oz native (7)
I believe the answer is:
echidna
'oz native' is the definition.
(I've seen this before)
'english companion with writer recalled' is the wordplay.
'english' becomes 'e' (abbreviation).
'companion' becomes 'ch' (I've seen this in other clues).
'with' becomes 'and' (I've seen this before**).
'writer' becomes 'i' (the person who is writing these clues).
'recalled' is a reversal indicator.
'and'+'i'='andi'
'andi' back-to-front is 'idna'.
'e'+'ch'+'idna'='ECHIDNA'
(Other definitions for echidna that I've seen before include "Insectivorous mammal" , "Spiny Aus. mammal" , "Creature with spines" , "Prickly creature" , "One preying on the workers" .)