Show girl without sex appeal? (5)
I believe the answer is:
evita
'show' is the definition.
(I've seen this before)
'girl without sex appeal?' is the wordplay.
'girl' becomes 'eva' (**).
'without' is an insertion indicator ('without' can be similar in meaning to 'outside').
'sex appeal?' becomes 'it'.
'eva' going around 'it' is 'EVITA'.
(Other definitions for evita that I've seen before include "Stage musical" , "Juan Peron's wife" , "1978 Lloyd Webber musical" , "Well-known musical" , "Musical based on Argentine leader" .)