Ready for Nigerian heretic to revert (5)
I believe the answer is:
naira
'ready for nigerian' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'heretic to revert' is the wordplay.
'heretic' becomes 'arian' (Arianism is a form of heresy).
'to revert' shows that the letters should be reversed in order.
'arian' written backwards gives 'NAIRA'.
Can you help me to learn more?
(Other definitions for naira that I've seen before include "Nigerian capital" , "African means" , "change from W Africa" , "African settler" , "piece of Nigerian money" .)