Maverick outlay got necessary requirement, say (9)
I believe the answer is:
tautology
'necessary requirement say' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'maverick outlay got' is the wordplay.
'maverick' indicates anagramming the letters.
'outlay'+'got'='outlaygot'
'outlaygot' with letters rearranged gives 'TAUTOLOGY'.
Can you help me to learn more?
(Other definitions for tautology that I've seen before include "Use of words repeating something already implied" , "identifying myself personally?" , "as new innovation, perhaps" , "Repetition in different words for a gouty lot" , "Unnecessary repetition of words" .)