First Lady books show (5)
I believe the answer is:
event
'show' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
'first lady books' is the wordplay.
'first' is a charade indicator (letters next to each other).
'lady' becomes 'eve' (I've seen this before).
'books' becomes 'NT' (abbreviation for New Testament).
'eve' next to 'nt' is 'EVENT'.
Can you help me to learn more?
(Other definitions for event that I've seen before include "Occasion; sports contest" , "A notable occurrence or happening" , "Particular happening" , "long jump, say" , "'Occurrence, happening (5)'" .)