Numbats that aren’t consumers aren’t extremely rare (9)
I believe the answer is:
anteaters
'numbats' is the definition.
('anteater' can be a synonym of 'numbat')
'aren't consumers aren't extremely rare' is the wordplay.
I cannot really see how this works, but
'consumers' could be 'eaters' (eater is a kind of consumer) and 'eaters' is present in the answer.
The remaining letters 'ant' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'that' is the link.
Can you help me to learn more?
(Other definitions for anteaters that I've seen before include "More than one insectivore" , "they take in the workers" .)