Show alluring woman unclothed? (4)
I believe the answer is:
expo
'show' is the definition.
(short for exposition, a large exhibition)
'alluring woman unclothed?' is the wordplay.
'alluring woman' becomes 'sexpot' (a sexpot is a sexy person).
'unclothed?' indicates the central letters (I've seen 'unclothed' mean this).
The centre of 'sexpot' is 'EXPO'.
(Other definitions for expo that I've seen before include "Large international exhibition" , "Show" , "Major international fair" , "Public showing" , "Public exhibition" .)