Reportedly instructed in a science? That must be right (9)
I believe the answer is:
tautology
'must be right' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'reportedly instructed in a science?' is the wordplay.
'reportedly instructed in' becomes 'taut' (I am not sure about this - if you are sure you should believe this answer much more).
'a science?' becomes 'ology' (I've seen this before).
'taut'+'ology'='TAUTOLOGY'
'that' acts as a link.
Can you help me to learn more?
(Other definitions for tautology that I've seen before include "Repetition in different words for a gouty lot" , "Unnecessary repetition of words" , "as new innovation, perhaps" , "Use of words repeating something already implied" , "identifying myself personally?" .)
